Finding the Fourth Proportional to 492,721.12, 739,080.42 and 118,744.12
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Solution
The fourth proportional to 492,721.12, 739,080.42 and 118,744.12 is: 178,115.88
Step by Step Solution
- Step 1: Write the proportion equation
492,721.12 : 739,080.42 = 118,744.12 : x - Step 2: Convert to fraction form
492,721.12/739,080.42 = 118,744.12/x - Step 3: Cross multiply
492,721.12x = 739,080.42 × 118,744.12 - Step 4: Simplify right side
492,721.12x = 87,761,454,082.13 - Step 5: Solve for x
x = 87,761,454,082.13/492,721.12 - Step 6: Final answer
x = 178,115.88
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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.