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Finding the Fourth Proportional to 234.31, 323.25 and 136.03

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Solution

The fourth proportional to 234.31, 323.25 and 136.03 is: 187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.31 : 323.25 = 136.03 : x
  2. Step 2: Convert to fraction form
    234.31/323.25 = 136.03/x
  3. Step 3: Cross multiply
    234.31x = 323.25 × 136.03
  4. Step 4: Simplify right side
    234.31x = 43,971.70
  5. Step 5: Solve for x
    x = 43,971.70/234.31
  6. Step 6: Final answer
    x = 187.66

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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.