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Finding the Fourth Proportional to 232.16, 348.08 and 87.75

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Solution

The fourth proportional to 232.16, 348.08 and 87.75 is: 131.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.16 : 348.08 = 87.75 : x
  2. Step 2: Convert to fraction form
    232.16/348.08 = 87.75/x
  3. Step 3: Cross multiply
    232.16x = 348.08 × 87.75
  4. Step 4: Simplify right side
    232.16x = 30,543.58
  5. Step 5: Solve for x
    x = 30,543.58/232.16
  6. Step 6: Final answer
    x = 131.57

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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.