Finding the Fourth Proportional to 486,192.20, 729,288.29 and 131,206.19
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Solution
The fourth proportional to 486,192.20, 729,288.29 and 131,206.19 is: 196,809.28
Step by Step Solution
- Step 1: Write the proportion equation
486,192.20 : 729,288.29 = 131,206.19 : x - Step 2: Convert to fraction form
486,192.20/729,288.29 = 131,206.19/x - Step 3: Cross multiply
486,192.20x = 729,288.29 × 131,206.19 - Step 4: Simplify right side
486,192.20x = 95,687,134,624.09 - Step 5: Solve for x
x = 95,687,134,624.09/486,192.20 - Step 6: Final answer
x = 196,809.28
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Similar ratio
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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.