Finding the Fourth Proportional to 279,073.92, 418,607.46 and 68,713.68
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Solution
The fourth proportional to 279,073.92, 418,607.46 and 68,713.68 is: 103,069.68
Step by Step Solution
- Step 1: Write the proportion equation
279,073.92 : 418,607.46 = 68,713.68 : x - Step 2: Convert to fraction form
279,073.92/418,607.46 = 68,713.68/x - Step 3: Cross multiply
279,073.92x = 418,607.46 × 68,713.68 - Step 4: Simplify right side
279,073.92x = 28,764,059,052.05 - Step 5: Solve for x
x = 28,764,059,052.05/279,073.92 - Step 6: Final answer
x = 103,069.68
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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.