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Finding the Fourth Proportional to 238.92, 356.39 and 234.60

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Solution

The fourth proportional to 238.92, 356.39 and 234.60 is: 349.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.92 : 356.39 = 234.60 : x
  2. Step 2: Convert to fraction form
    238.92/356.39 = 234.60/x
  3. Step 3: Cross multiply
    238.92x = 356.39 × 234.60
  4. Step 4: Simplify right side
    238.92x = 83,607.92
  5. Step 5: Solve for x
    x = 83,607.92/238.92
  6. Step 6: Final answer
    x = 349.94

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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.