Finding the Fourth Proportional to 279,616.10, 418,549.35 and 220,129.70
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Solution
The fourth proportional to 279,616.10, 418,549.35 and 220,129.70 is: 329,505.86
Step by Step Solution
- Step 1: Write the proportion equation
279,616.10 : 418,549.35 = 220,129.70 : x - Step 2: Convert to fraction form
279,616.10/418,549.35 = 220,129.70/x - Step 3: Cross multiply
279,616.10x = 418,549.35 × 220,129.70 - Step 4: Simplify right side
279,616.10x = 92,135,142,850.70 - Step 5: Solve for x
x = 92,135,142,850.70/279,616.10 - Step 6: Final answer
x = 329,505.86
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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.