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Finding the Fourth Proportional to 441.54, 660.99 and 267.68

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Solution

The fourth proportional to 441.54, 660.99 and 267.68 is: 400.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.54 : 660.99 = 267.68 : x
  2. Step 2: Convert to fraction form
    441.54/660.99 = 267.68/x
  3. Step 3: Cross multiply
    441.54x = 660.99 × 267.68
  4. Step 4: Simplify right side
    441.54x = 176,933.80
  5. Step 5: Solve for x
    x = 176,933.80/441.54
  6. Step 6: Final answer
    x = 400.72

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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.