Finding the Fourth Proportional to 275,423.40, 413,135.10 and 88,453.80
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Solution
The fourth proportional to 275,423.40, 413,135.10 and 88,453.80 is: 132,680.70
Step by Step Solution
- Step 1: Write the proportion equation
275,423.40 : 413,135.10 = 88,453.80 : x - Step 2: Convert to fraction form
275,423.40/413,135.10 = 88,453.80/x - Step 3: Cross multiply
275,423.40x = 413,135.10 × 88,453.80 - Step 4: Simplify right side
275,423.40x = 36,543,369,508.38 - Step 5: Solve for x
x = 36,543,369,508.38/275,423.40 - Step 6: Final answer
x = 132,680.70
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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.