Finding the Fourth Proportional to 331,029.70, 496,544.55 and 81,711.70
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Solution
The fourth proportional to 331,029.70, 496,544.55 and 81,711.70 is: 122,567.55
Step by Step Solution
- Step 1: Write the proportion equation
331,029.70 : 496,544.55 = 81,711.70 : x - Step 2: Convert to fraction form
331,029.70/496,544.55 = 81,711.70/x - Step 3: Cross multiply
331,029.70x = 496,544.55 × 81,711.70 - Step 4: Simplify right side
331,029.70x = 40,573,499,306.24 - Step 5: Solve for x
x = 40,573,499,306.24/331,029.70 - Step 6: Final answer
x = 122,567.55
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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.