Home / 440,817.28-661,231.44-125,273.76

Finding the Fourth Proportional to 440,817.28, 661,231.44 and 125,273.76

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Solution

The fourth proportional to 440,817.28, 661,231.44 and 125,273.76 is: 187,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,817.28 : 661,231.44 = 125,273.76 : x
  2. Step 2: Convert to fraction form
    440,817.28/661,231.44 = 125,273.76/x
  3. Step 3: Cross multiply
    440,817.28x = 661,231.44 × 125,273.76
  4. Step 4: Simplify right side
    440,817.28x = 82,834,948,719.01
  5. Step 5: Solve for x
    x = 82,834,948,719.01/440,817.28
  6. Step 6: Final answer
    x = 187,912.21

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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.