Finding the Fourth Proportional to 212,204.57, 318,306.92 and 54,432.99
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Solution
The fourth proportional to 212,204.57, 318,306.92 and 54,432.99 is: 81,649.50
Step by Step Solution
- Step 1: Write the proportion equation
212,204.57 : 318,306.92 = 54,432.99 : x - Step 2: Convert to fraction form
212,204.57/318,306.92 = 54,432.99/x - Step 3: Cross multiply
212,204.57x = 318,306.92 × 54,432.99 - Step 4: Simplify right side
212,204.57x = 17,326,397,121.13 - Step 5: Solve for x
x = 17,326,397,121.13/212,204.57 - Step 6: Final answer
x = 81,649.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.