Finding the Fourth Proportional to 319,583.11, 479,375.21 and 255,945.99
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Solution
The fourth proportional to 319,583.11, 479,375.21 and 255,945.99 is: 383,919.42
Step by Step Solution
- Step 1: Write the proportion equation
319,583.11 : 479,375.21 = 255,945.99 : x - Step 2: Convert to fraction form
319,583.11/479,375.21 = 255,945.99/x - Step 3: Cross multiply
319,583.11x = 479,375.21 × 255,945.99 - Step 4: Simplify right side
319,583.11x = 122,694,162,704.91 - Step 5: Solve for x
x = 122,694,162,704.91/319,583.11 - Step 6: Final answer
x = 383,919.42
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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.