Home / 225,721.38-338,343.36-83,475.26

Finding the Fourth Proportional to 225,721.38, 338,343.36 and 83,475.26

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Solution

The fourth proportional to 225,721.38, 338,343.36 and 83,475.26 is: 125,124.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,721.38 : 338,343.36 = 83,475.26 : x
  2. Step 2: Convert to fraction form
    225,721.38/338,343.36 = 83,475.26/x
  3. Step 3: Cross multiply
    225,721.38x = 338,343.36 × 83,475.26
  4. Step 4: Simplify right side
    225,721.38x = 28,243,299,945.27
  5. Step 5: Solve for x
    x = 28,243,299,945.27/225,721.38
  6. Step 6: Final answer
    x = 125,124.61

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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.