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Finding the Fourth Proportional to 232.08, 348.48 and 147.12

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Solution

The fourth proportional to 232.08, 348.48 and 147.12 is: 220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.08 : 348.48 = 147.12 : x
  2. Step 2: Convert to fraction form
    232.08/348.48 = 147.12/x
  3. Step 3: Cross multiply
    232.08x = 348.48 × 147.12
  4. Step 4: Simplify right side
    232.08x = 51,268.38
  5. Step 5: Solve for x
    x = 51,268.38/232.08
  6. Step 6: Final answer
    x = 220.91

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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.