Finding the Fourth Proportional to 426,163.20, 639,244.80 and 293,452.80
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Solution
The fourth proportional to 426,163.20, 639,244.80 and 293,452.80 is: 440,179.20
Step by Step Solution
- Step 1: Write the proportion equation
426,163.20 : 639,244.80 = 293,452.80 : x - Step 2: Convert to fraction form
426,163.20/639,244.80 = 293,452.80/x - Step 3: Cross multiply
426,163.20x = 639,244.80 × 293,452.80 - Step 4: Simplify right side
426,163.20x = 187,588,176,445.44 - Step 5: Solve for x
x = 187,588,176,445.44/426,163.20 - Step 6: Final answer
x = 440,179.20
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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.