Finding the Fourth Proportional to 384,312.80, 576,469.20 and 272,119.70
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Solution
The fourth proportional to 384,312.80, 576,469.20 and 272,119.70 is: 408,179.55
Step by Step Solution
- Step 1: Write the proportion equation
384,312.80 : 576,469.20 = 272,119.70 : x - Step 2: Convert to fraction form
384,312.80/576,469.20 = 272,119.70/x - Step 3: Cross multiply
384,312.80x = 576,469.20 × 272,119.70 - Step 4: Simplify right side
384,312.80x = 156,868,625,763.24 - Step 5: Solve for x
x = 156,868,625,763.24/384,312.80 - Step 6: Final answer
x = 408,179.55
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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.