Finding the Fourth Proportional to 366,821.20, 550,231.80 and 331,391.80
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Solution
The fourth proportional to 366,821.20, 550,231.80 and 331,391.80 is: 497,087.70
Step by Step Solution
- Step 1: Write the proportion equation
366,821.20 : 550,231.80 = 331,391.80 : x - Step 2: Convert to fraction form
366,821.20/550,231.80 = 331,391.80/x - Step 3: Cross multiply
366,821.20x = 550,231.80 × 331,391.80 - Step 4: Simplify right side
366,821.20x = 182,342,306,619.24 - Step 5: Solve for x
x = 182,342,306,619.24/366,821.20 - Step 6: Final answer
x = 497,087.70
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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.