Finding the Fourth Proportional to 342,542.43, 513,149.00 and 252,421.65
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Solution
The fourth proportional to 342,542.43, 513,149.00 and 252,421.65 is: 378,142.69
Step by Step Solution
- Step 1: Write the proportion equation
342,542.43 : 513,149.00 = 252,421.65 : x - Step 2: Convert to fraction form
342,542.43/513,149.00 = 252,421.65/x - Step 3: Cross multiply
342,542.43x = 513,149.00 × 252,421.65 - Step 4: Simplify right side
342,542.43x = 129,529,916,013.74 - Step 5: Solve for x
x = 129,529,916,013.74/342,542.43 - Step 6: Final answer
x = 378,142.69
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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.