Finding the Fourth Proportional to 278,737.20, 418,105.80 and 229,529.70
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Solution
The fourth proportional to 278,737.20, 418,105.80 and 229,529.70 is: 344,294.55
Step by Step Solution
- Step 1: Write the proportion equation
278,737.20 : 418,105.80 = 229,529.70 : x - Step 2: Convert to fraction form
278,737.20/418,105.80 = 229,529.70/x - Step 3: Cross multiply
278,737.20x = 418,105.80 × 229,529.70 - Step 4: Simplify right side
278,737.20x = 95,967,698,842.26 - Step 5: Solve for x
x = 95,967,698,842.26/278,737.20 - Step 6: Final answer
x = 344,294.55
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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.