Home / 426,342.17-639,576.44-141,939.83

Finding the Fourth Proportional to 426,342.17, 639,576.44 and 141,939.83

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Solution

The fourth proportional to 426,342.17, 639,576.44 and 141,939.83 is: 212,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,342.17 : 639,576.44 = 141,939.83 : x
  2. Step 2: Convert to fraction form
    426,342.17/639,576.44 = 141,939.83/x
  3. Step 3: Cross multiply
    426,342.17x = 639,576.44 × 141,939.83
  4. Step 4: Simplify right side
    426,342.17x = 90,781,371,165.61
  5. Step 5: Solve for x
    x = 90,781,371,165.61/426,342.17
  6. Step 6: Final answer
    x = 212,930.78

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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.