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Finding the Fourth Proportional to 232.20, 349.64 and 171.75

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Solution

The fourth proportional to 232.20, 349.64 and 171.75 is: 258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.20 : 349.64 = 171.75 : x
  2. Step 2: Convert to fraction form
    232.20/349.64 = 171.75/x
  3. Step 3: Cross multiply
    232.20x = 349.64 × 171.75
  4. Step 4: Simplify right side
    232.20x = 60,050.67
  5. Step 5: Solve for x
    x = 60,050.67/232.20
  6. Step 6: Final answer
    x = 258.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.