Home / 419,171.31-628,377.77-152,869.43

Finding the Fourth Proportional to 419,171.31, 628,377.77 and 152,869.43

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Solution

The fourth proportional to 419,171.31, 628,377.77 and 152,869.43 is: 229,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,171.31 : 628,377.77 = 152,869.43 : x
  2. Step 2: Convert to fraction form
    419,171.31/628,377.77 = 152,869.43/x
  3. Step 3: Cross multiply
    419,171.31x = 628,377.77 × 152,869.43
  4. Step 4: Simplify right side
    419,171.31x = 96,059,753,477.69
  5. Step 5: Solve for x
    x = 96,059,753,477.69/419,171.31
  6. Step 6: Final answer
    x = 229,165.86

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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.