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Finding the Fourth Proportional to 232.76, 348.60 and 191.90

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Solution

The fourth proportional to 232.76, 348.60 and 191.90 is: 287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.76 : 348.60 = 191.90 : x
  2. Step 2: Convert to fraction form
    232.76/348.60 = 191.90/x
  3. Step 3: Cross multiply
    232.76x = 348.60 × 191.90
  4. Step 4: Simplify right side
    232.76x = 66,896.34
  5. Step 5: Solve for x
    x = 66,896.34/232.76
  6. Step 6: Final answer
    x = 287.40

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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.