Home / 281,836.20-422,278.83-139,491.66

Finding the Fourth Proportional to 281,836.20, 422,278.83 and 139,491.66

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Solution

The fourth proportional to 281,836.20, 422,278.83 and 139,491.66 is: 209,002.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,836.20 : 422,278.83 = 139,491.66 : x
  2. Step 2: Convert to fraction form
    281,836.20/422,278.83 = 139,491.66/x
  3. Step 3: Cross multiply
    281,836.20x = 422,278.83 × 139,491.66
  4. Step 4: Simplify right side
    281,836.20x = 58,904,374,979.56
  5. Step 5: Solve for x
    x = 58,904,374,979.56/281,836.20
  6. Step 6: Final answer
    x = 209,002.16

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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.