Finding the Fourth Proportional to 437,396.80, 656,121.12 and 137,886.88
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Solution
The fourth proportional to 437,396.80, 656,121.12 and 137,886.88 is: 206,838.49
Step by Step Solution
- Step 1: Write the proportion equation
437,396.80 : 656,121.12 = 137,886.88 : x - Step 2: Convert to fraction form
437,396.80/656,121.12 = 137,886.88/x - Step 3: Cross multiply
437,396.80x = 656,121.12 × 137,886.88 - Step 4: Simplify right side
437,396.80x = 90,470,494,138.91 - Step 5: Solve for x
x = 90,470,494,138.91/437,396.80 - Step 6: Final answer
x = 206,838.49
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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.