Home / 439,902.20-659,864.76-140,382.38

Finding the Fourth Proportional to 439,902.20, 659,864.76 and 140,382.38

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Solution

The fourth proportional to 439,902.20, 659,864.76 and 140,382.38 is: 210,577.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,902.20 : 659,864.76 = 140,382.38 : x
  2. Step 2: Convert to fraction form
    439,902.20/659,864.76 = 140,382.38/x
  3. Step 3: Cross multiply
    439,902.20x = 659,864.76 × 140,382.38
  4. Step 4: Simplify right side
    439,902.20x = 92,633,382,187.61
  5. Step 5: Solve for x
    x = 92,633,382,187.61/439,902.20
  6. Step 6: Final answer
    x = 210,577.22

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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.