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Finding the Fourth Proportional to 376.17, 563.91 and 132.56

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Solution

The fourth proportional to 376.17, 563.91 and 132.56 is: 198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.17 : 563.91 = 132.56 : x
  2. Step 2: Convert to fraction form
    376.17/563.91 = 132.56/x
  3. Step 3: Cross multiply
    376.17x = 563.91 × 132.56
  4. Step 4: Simplify right side
    376.17x = 74,750.71
  5. Step 5: Solve for x
    x = 74,750.71/376.17
  6. Step 6: Final answer
    x = 198.72

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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.