Home / 426,146.27-639,053.29-159,761.44

Finding the Fourth Proportional to 426,146.27, 639,053.29 and 159,761.44

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Solution

The fourth proportional to 426,146.27, 639,053.29 and 159,761.44 is: 239,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,146.27 : 639,053.29 = 159,761.44 : x
  2. Step 2: Convert to fraction form
    426,146.27/639,053.29 = 159,761.44/x
  3. Step 3: Cross multiply
    426,146.27x = 639,053.29 × 159,761.44
  4. Step 4: Simplify right side
    426,146.27x = 102,096,071,850.10
  5. Step 5: Solve for x
    x = 102,096,071,850.10/426,146.27
  6. Step 6: Final answer
    x = 239,579.88

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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.