Question

If in a proportion, the first, second and fourth terms are 32, 112 and 217 respectively, find the third term.

Answer 1

In a proportion, the first, second and fourth terms are 32, 112 and 217, respectively.

Let the third term is be x.

Then, we have:

32 : 112 : : x : 217

$$\begin{gathered} \Rightarrow \frac{32}{112}=\frac{x}{217}\Rightarrow \frac{32}{112}\times 217=x \\ \Rightarrow x=62 \end{gathered}$$