Finding the Fourth Proportional to 357,395.35, 534,753.08 and 212,772.18
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Solution
The fourth proportional to 357,395.35, 534,753.08 and 212,772.18 is: 318,360.55
Step by Step Solution
- Step 1: Write the proportion equation
357,395.35 : 534,753.08 = 212,772.18 : x - Step 2: Convert to fraction form
357,395.35/534,753.08 = 212,772.18/x - Step 3: Cross multiply
357,395.35x = 534,753.08 × 212,772.18 - Step 4: Simplify right side
357,395.35x = 113,780,578,593.31 - Step 5: Solve for x
x = 113,780,578,593.31/357,395.35 - Step 6: Final answer
x = 318,360.55
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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.