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Finding the Fourth Proportional to 440.41, 660.48 and 162.71

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Solution

The fourth proportional to 440.41, 660.48 and 162.71 is: 244.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.41 : 660.48 = 162.71 : x
  2. Step 2: Convert to fraction form
    440.41/660.48 = 162.71/x
  3. Step 3: Cross multiply
    440.41x = 660.48 × 162.71
  4. Step 4: Simplify right side
    440.41x = 107,466.70
  5. Step 5: Solve for x
    x = 107,466.70/440.41
  6. Step 6: Final answer
    x = 244.02

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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.