Finding the Fourth Proportional to 275,807.80, 413,711.70 and 135,839.80
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Solution
The fourth proportional to 275,807.80, 413,711.70 and 135,839.80 is: 203,759.70
Step by Step Solution
- Step 1: Write the proportion equation
275,807.80 : 413,711.70 = 135,839.80 : x - Step 2: Convert to fraction form
275,807.80/413,711.70 = 135,839.80/x - Step 3: Cross multiply
275,807.80x = 413,711.70 × 135,839.80 - Step 4: Simplify right side
275,807.80x = 56,198,514,585.66 - Step 5: Solve for x
x = 56,198,514,585.66/275,807.80 - Step 6: Final answer
x = 203,759.70
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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.