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Finding the Fourth Proportional to 392.97, 588.75 and 327.57

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Solution

The fourth proportional to 392.97, 588.75 and 327.57 is: 490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.97 : 588.75 = 327.57 : x
  2. Step 2: Convert to fraction form
    392.97/588.75 = 327.57/x
  3. Step 3: Cross multiply
    392.97x = 588.75 × 327.57
  4. Step 4: Simplify right side
    392.97x = 192,856.84
  5. Step 5: Solve for x
    x = 192,856.84/392.97
  6. Step 6: Final answer
    x = 490.77

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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.