Finding the Fourth Proportional to 512,117.40, 768,176.10 and 344,155.80
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Solution
The fourth proportional to 512,117.40, 768,176.10 and 344,155.80 is: 516,233.70
Step by Step Solution
- Step 1: Write the proportion equation
512,117.40 : 768,176.10 = 344,155.80 : x - Step 2: Convert to fraction form
512,117.40/768,176.10 = 344,155.80/x - Step 3: Cross multiply
512,117.40x = 768,176.10 × 344,155.80 - Step 4: Simplify right side
512,117.40x = 264,372,260,236.38 - Step 5: Solve for x
x = 264,372,260,236.38/512,117.40 - Step 6: Final answer
x = 516,233.70
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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.