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Finding the Fourth Proportional to 232.11, 347.43 and 166.90

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Solution

The fourth proportional to 232.11, 347.43 and 166.90 is: 249.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.11 : 347.43 = 166.90 : x
  2. Step 2: Convert to fraction form
    232.11/347.43 = 166.90/x
  3. Step 3: Cross multiply
    232.11x = 347.43 × 166.90
  4. Step 4: Simplify right side
    232.11x = 57,986.07
  5. Step 5: Solve for x
    x = 57,986.07/232.11
  6. Step 6: Final answer
    x = 249.82

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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.