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Finding the Fourth Proportional to 440,562.71, 660,844.69 and 108,138.71

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Solution

The fourth proportional to 440,562.71, 660,844.69 and 108,138.71 is: 162,208.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,562.71 : 660,844.69 = 108,138.71 : x
  2. Step 2: Convert to fraction form
    440,562.71/660,844.69 = 108,138.71/x
  3. Step 3: Cross multiply
    440,562.71x = 660,844.69 × 108,138.71
  4. Step 4: Simplify right side
    440,562.71x = 71,462,892,286.95
  5. Step 5: Solve for x
    x = 71,462,892,286.95/440,562.71
  6. Step 6: Final answer
    x = 162,208.22

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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.