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Finding the Fourth Proportional to 394.75, 588.92 and 375.61

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Solution

The fourth proportional to 394.75, 588.92 and 375.61 is: 560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.75 : 588.92 = 375.61 : x
  2. Step 2: Convert to fraction form
    394.75/588.92 = 375.61/x
  3. Step 3: Cross multiply
    394.75x = 588.92 × 375.61
  4. Step 4: Simplify right side
    394.75x = 221,204.24
  5. Step 5: Solve for x
    x = 221,204.24/394.75
  6. Step 6: Final answer
    x = 560.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.