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Finding the Fourth Proportional to 234.31, 323.33 and 136.06

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Solution

The fourth proportional to 234.31, 323.33 and 136.06 is: 187.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.31 : 323.33 = 136.06 : x
  2. Step 2: Convert to fraction form
    234.31/323.33 = 136.06/x
  3. Step 3: Cross multiply
    234.31x = 323.33 × 136.06
  4. Step 4: Simplify right side
    234.31x = 43,992.61
  5. Step 5: Solve for x
    x = 43,992.61/234.31
  6. Step 6: Final answer
    x = 187.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.