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Finding the Fourth Proportional to 376.72, 565.17 and 133.27

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Solution

The fourth proportional to 376.72, 565.17 and 133.27 is: 199.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.72 : 565.17 = 133.27 : x
  2. Step 2: Convert to fraction form
    376.72/565.17 = 133.27/x
  3. Step 3: Cross multiply
    376.72x = 565.17 × 133.27
  4. Step 4: Simplify right side
    376.72x = 75,320.21
  5. Step 5: Solve for x
    x = 75,320.21/376.72
  6. Step 6: Final answer
    x = 199.94

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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.