Finding the Fourth Proportional to 379,711.20, 569,566.80 and 202,126.80
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Solution
The fourth proportional to 379,711.20, 569,566.80 and 202,126.80 is: 303,190.20
Step by Step Solution
- Step 1: Write the proportion equation
379,711.20 : 569,566.80 = 202,126.80 : x - Step 2: Convert to fraction form
379,711.20/569,566.80 = 202,126.80/x - Step 3: Cross multiply
379,711.20x = 569,566.80 × 202,126.80 - Step 4: Simplify right side
379,711.20x = 115,124,714,670.24 - Step 5: Solve for x
x = 115,124,714,670.24/379,711.20 - Step 6: Final answer
x = 303,190.20
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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.