Home / 440,531.61-660,474.23-140,839.71

Finding the Fourth Proportional to 440,531.61, 660,474.23 and 140,839.71

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Solution

The fourth proportional to 440,531.61, 660,474.23 and 140,839.71 is: 211,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,531.61 : 660,474.23 = 140,839.71 : x
  2. Step 2: Convert to fraction form
    440,531.61/660,474.23 = 140,839.71/x
  3. Step 3: Cross multiply
    440,531.61x = 660,474.23 × 140,839.71
  4. Step 4: Simplify right side
    440,531.61x = 93,020,998,311.47
  5. Step 5: Solve for x
    x = 93,020,998,311.47/440,531.61
  6. Step 6: Final answer
    x = 211,156.24

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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.