Finding the Fourth Proportional to 385,417.12, 578,068.08 and 132,737.44
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Solution
The fourth proportional to 385,417.12, 578,068.08 and 132,737.44 is: 199,086.32
Step by Step Solution
- Step 1: Write the proportion equation
385,417.12 : 578,068.08 = 132,737.44 : x - Step 2: Convert to fraction form
385,417.12/578,068.08 = 132,737.44/x - Step 3: Cross multiply
385,417.12x = 578,068.08 × 132,737.44 - Step 4: Simplify right side
385,417.12x = 76,731,277,084.92 - Step 5: Solve for x
x = 76,731,277,084.92/385,417.12 - Step 6: Final answer
x = 199,086.32
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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.