Finding the Third Proportional to 187 and 215.50
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Solution
The third proportional to 187 and 215.50 is: 248.34
Step by Step Solution
- Step 1: Write the proportion equation
187 : 215.50 = 215.50 : x - Step 2: Convert to fraction form
187/215.50 = 215.50/x - Step 3: Cross multiply
187x = 215.50 × 215.50 - Step 4: Simplify right side
187x = 46,440.25 - Step 5: Solve for x
x = 46,440.25/187 - Step 6: Final answer
x = 248.34
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These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.