Finding the Fourth Proportional to 527,520.80, 791,282.12 and 128,161.85
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Solution
The fourth proportional to 527,520.80, 791,282.12 and 128,161.85 is: 192,242.99
Step by Step Solution
- Step 1: Write the proportion equation
527,520.80 : 791,282.12 = 128,161.85 : x - Step 2: Convert to fraction form
527,520.80/791,282.12 = 128,161.85/x - Step 3: Cross multiply
527,520.80x = 791,282.12 × 128,161.85 - Step 4: Simplify right side
527,520.80x = 101,412,175,773.90 - Step 5: Solve for x
x = 101,412,175,773.90/527,520.80 - Step 6: Final answer
x = 192,242.99
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1.5x scale
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.