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Finding the Fourth Proportional to 375.62, 563.12 and 132.30

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Solution

The fourth proportional to 375.62, 563.12 and 132.30 is: 198.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.62 : 563.12 = 132.30 : x
  2. Step 2: Convert to fraction form
    375.62/563.12 = 132.30/x
  3. Step 3: Cross multiply
    375.62x = 563.12 × 132.30
  4. Step 4: Simplify right side
    375.62x = 74,500.78
  5. Step 5: Solve for x
    x = 74,500.78/375.62
  6. Step 6: Final answer
    x = 198.34

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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.