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Finding the Fourth Proportional to 440,882.56, 660,998.20 and 141,189.76

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Solution

The fourth proportional to 440,882.56, 660,998.20 and 141,189.76 is: 211,680.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,882.56 : 660,998.20 = 141,189.76 : x
  2. Step 2: Convert to fraction form
    440,882.56/660,998.20 = 141,189.76/x
  3. Step 3: Cross multiply
    440,882.56x = 660,998.20 × 141,189.76
  4. Step 4: Simplify right side
    440,882.56x = 93,326,177,218.43
  5. Step 5: Solve for x
    x = 93,326,177,218.43/440,882.56
  6. Step 6: Final answer
    x = 211,680.36

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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.