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Finding the Fourth Proportional to 238.23, 356.89 and 169.58

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Solution

The fourth proportional to 238.23, 356.89 and 169.58 is: 254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.23 : 356.89 = 169.58 : x
  2. Step 2: Convert to fraction form
    238.23/356.89 = 169.58/x
  3. Step 3: Cross multiply
    238.23x = 356.89 × 169.58
  4. Step 4: Simplify right side
    238.23x = 60,521.41
  5. Step 5: Solve for x
    x = 60,521.41/238.23
  6. Step 6: Final answer
    x = 254.05

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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.