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Finding the Fourth Proportional to 238.41, 357.28 and 169.43

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Solution

The fourth proportional to 238.41, 357.28 and 169.43 is: 253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.41 : 357.28 = 169.43 : x
  2. Step 2: Convert to fraction form
    238.41/357.28 = 169.43/x
  3. Step 3: Cross multiply
    238.41x = 357.28 × 169.43
  4. Step 4: Simplify right side
    238.41x = 60,531.74
  5. Step 5: Solve for x
    x = 60,531.74/238.41
  6. Step 6: Final answer
    x = 253.90

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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.