75: 375::? : 225
You asked:
Solve \(75 : 375=? : 225\) for the variable \(?\).
MathBot Answer:
$$\begin{aligned}? &= 45\end{aligned}$$
Express both ratios as fractions. \[\frac{75}{375} = \frac{?}{225}\]
Cross-multiply and solve for the unknown. $$\begin{aligned}\frac{75}{375} &= \frac{?}{225} \\ 16875 &= 375 ? \\ ? &&= 45 \end{aligned}$$