[tex]\begin{gathered} \frac{1\text{ inch}}{60\text{ miles}}=\frac{\text{x inches}}{240\text{ miles}} \\ \\ \text{Solve for x} \\ \frac{1\text{ inch }\cdot\text{ 240 miles}}{60\text{ miles}}=x\text{ inches} \\ \\ 4\text{ inches = x inches} \end{gathered}[/tex]