Finding the Fourth Proportional to 425,294.43, 638,033.18 and 212,176.95
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Solution
The fourth proportional to 425,294.43, 638,033.18 and 212,176.95 is: 318,311.09
Step by Step Solution
- Step 1: Write the proportion equation
425,294.43 : 638,033.18 = 212,176.95 : x - Step 2: Convert to fraction form
425,294.43/638,033.18 = 212,176.95/x - Step 3: Cross multiply
425,294.43x = 638,033.18 × 212,176.95 - Step 4: Simplify right side
425,294.43x = 135,375,934,131.20 - Step 5: Solve for x
x = 135,375,934,131.20/425,294.43 - Step 6: Final answer
x = 318,311.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.