Finding the Third Proportional to 118 and 211.50
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Solution
The third proportional to 118 and 211.50 is: 379.09
Step by Step Solution
- Step 1: Write the proportion equation
118 : 211.50 = 211.50 : x - Step 2: Convert to fraction form
118/211.50 = 211.50/x - Step 3: Cross multiply
118x = 211.50 × 211.50 - Step 4: Simplify right side
118x = 44,732.25 - Step 5: Solve for x
x = 44,732.25/118 - Step 6: Final answer
x = 379.09
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These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.