Good free worksheets on proportions include worksheets that require students to find the missing number in a proportion and word problems that require students to set up a proportion to solve. Free worksheets are available on HomeSchoolMath.net and MathWorksheets4Kids.com, as of 2015.
HomeSchoolMath.net provides ready-made worksheets that visitors download in PDF format. Worksheets include proportions with whole numbers and decimals. The website also features a worksheet generator that allows visitors to choose the number of problems and the range of numbers in the proportions.
MathWorksheets4Kids.com features worksheets that require students to find the missing number, create a proportion and solve word problems with proportions. The website also features ratio worksheets.