Finding the Fourth Proportional to 656,521.12, 984,781.68 and 157,885.12
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Solution
The fourth proportional to 656,521.12, 984,781.68 and 157,885.12 is: 236,827.68
Step by Step Solution
- Step 1: Write the proportion equation
656,521.12 : 984,781.68 = 157,885.12 : x - Step 2: Convert to fraction form
656,521.12/984,781.68 = 157,885.12/x - Step 3: Cross multiply
656,521.12x = 984,781.68 × 157,885.12 - Step 4: Simplify right side
656,521.12x = 155,482,373,720.60 - Step 5: Solve for x
x = 155,482,373,720.60/656,521.12 - Step 6: Final answer
x = 236,827.68
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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.