60 miles = 1 inche
x miles = 2 1/2 inche
[tex]\frac{60\text{ miles}}{x\text{ miles}}\text{ = }\frac{1\text{ inche}}{2\frac{1}{2}\text{inches}}[/tex][tex]\begin{gathered} 60\text{ miles }\times\text{ }\frac{5}{2\text{ }}inches\text{ = 1 inches }\times\text{ x miles} \\ \text{xmiles =150 miles} \end{gathered}[/tex]