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# What Does Proportion Mean in Math?

**In math a proportion is a way of showing that two fractions are equal to each other; for example, 1/2 = 2/4.** Common problems using proportions involve situations where three of the four numbers in the proportion are known, and one must calculate the missing value.

A common example of proportions involves calculating percentages. A football analyst who wants to know how many games a team must win in a season to have an 75 percent win rate uses the following proportion: x/16 = 75/100. To find the answer, multiply across the proportion to remove the fractions and reach a simple algebraic equation: 100x = 1200, or x = 12. This shows that a team must win 12 of 16 games to reach a 75 percent win rate.

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## What Is the Difference Between Direct and Inverse Proportion?

A: The difference between direct and an inverse proportion is simple to explain by using equations. While the equation for direct proportions is y = kx, the e... Full Answer >Filed Under: -
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## What Is a Fractional Scale?

A: In mapmaking, a fractional scale refers to the proportion of map distance to the actual distance on the ground. It can be expressed in fractional form or a... Full Answer >Filed Under: -
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## How Do You Find the Missing Numerator or Denominator?

A: To find a missing numerator or denominator of a fraction, another fraction of equal proportion must also be present so that a ratio can be set up and solve... Full Answer >Filed Under: -
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## What Is a Reciprocal in Math?

A: Reciprocals are two numbers that have one as their product when multiplied with each other. They are most often expressed as proper or improper fractions. Full Answer >Filed Under: