Home / 378,225.27-567,387.09-138,301.81

Finding the Fourth Proportional to 378,225.27, 567,387.09 and 138,301.81

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Solution

The fourth proportional to 378,225.27, 567,387.09 and 138,301.81 is: 207,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,225.27 : 567,387.09 = 138,301.81 : x
  2. Step 2: Convert to fraction form
    378,225.27/567,387.09 = 138,301.81/x
  3. Step 3: Cross multiply
    378,225.27x = 567,387.09 × 138,301.81
  4. Step 4: Simplify right side
    378,225.27x = 78,470,660,099.17
  5. Step 5: Solve for x
    x = 78,470,660,099.17/378,225.27
  6. Step 6: Final answer
    x = 207,470.70

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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.