Finding the Fourth Proportional to 331,209.20, 496,821.99 and 120,847.13
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Solution
The fourth proportional to 331,209.20, 496,821.99 and 120,847.13 is: 181,273.68
Step by Step Solution
- Step 1: Write the proportion equation
331,209.20 : 496,821.99 = 120,847.13 : x - Step 2: Convert to fraction form
331,209.20/496,821.99 = 120,847.13/x - Step 3: Cross multiply
331,209.20x = 496,821.99 × 120,847.13 - Step 4: Simplify right side
331,209.20x = 60,039,511,612.39 - Step 5: Solve for x
x = 60,039,511,612.39/331,209.20 - Step 6: Final answer
x = 181,273.68
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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.