What is the definition of triple rule of three?

The triple rule of three is a mathematical principle used in proportional reasoning, stating that if three values are known, a fourth can be calculated through simple ratiOS. It can be applied in two contexts: the direct rule of three, where an increase in one quantity results in a proportional increase in another, and the inverse rule, where an increase in one leads to a decrease in the other. This rule is particularly useful in solving problems related to scaling, such as recipes or budgeting.