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Finding the Fourth Proportional to 440.74, 660.58 and 180.73

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Solution

The fourth proportional to 440.74, 660.58 and 180.73 is: 270.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.74 : 660.58 = 180.73 : x
  2. Step 2: Convert to fraction form
    440.74/660.58 = 180.73/x
  3. Step 3: Cross multiply
    440.74x = 660.58 × 180.73
  4. Step 4: Simplify right side
    440.74x = 119,386.62
  5. Step 5: Solve for x
    x = 119,386.62/440.74
  6. Step 6: Final answer
    x = 270.88

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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.