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Finding the Fourth Proportional to 376.72, 523.48 and 372.76

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Solution

The fourth proportional to 376.72, 523.48 and 372.76 is: 517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.72 : 523.48 = 372.76 : x
  2. Step 2: Convert to fraction form
    376.72/523.48 = 372.76/x
  3. Step 3: Cross multiply
    376.72x = 523.48 × 372.76
  4. Step 4: Simplify right side
    376.72x = 195,132.40
  5. Step 5: Solve for x
    x = 195,132.40/376.72
  6. Step 6: Final answer
    x = 517.98

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.