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Finding the Fourth Proportional to 395.97, 593.97 and 372.21

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Solution

The fourth proportional to 395.97, 593.97 and 372.21 is: 558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.97 : 593.97 = 372.21 : x
  2. Step 2: Convert to fraction form
    395.97/593.97 = 372.21/x
  3. Step 3: Cross multiply
    395.97x = 593.97 × 372.21
  4. Step 4: Simplify right side
    395.97x = 221,081.57
  5. Step 5: Solve for x
    x = 221,081.57/395.97
  6. Step 6: Final answer
    x = 558.33

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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.