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Finding the Fourth Proportional to 441.35, 660.97 and 349.75

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Solution

The fourth proportional to 441.35, 660.97 and 349.75 is: 523.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.35 : 660.97 = 349.75 : x
  2. Step 2: Convert to fraction form
    441.35/660.97 = 349.75/x
  3. Step 3: Cross multiply
    441.35x = 660.97 × 349.75
  4. Step 4: Simplify right side
    441.35x = 231,169.20
  5. Step 5: Solve for x
    x = 231,169.20/441.35
  6. Step 6: Final answer
    x = 523.78

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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.