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Finding the Fourth Proportional to 234.63, 323.69 and 147.24

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Solution

The fourth proportional to 234.63, 323.69 and 147.24 is: 203.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.63 : 323.69 = 147.24 : x
  2. Step 2: Convert to fraction form
    234.63/323.69 = 147.24/x
  3. Step 3: Cross multiply
    234.63x = 323.69 × 147.24
  4. Step 4: Simplify right side
    234.63x = 47,659.38
  5. Step 5: Solve for x
    x = 47,659.38/234.63
  6. Step 6: Final answer
    x = 203.13

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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.