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Finding the Fourth Proportional to 484.53, 667.11 and 379.49

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Solution

The fourth proportional to 484.53, 667.11 and 379.49 is: 522.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.53 : 667.11 = 379.49 : x
  2. Step 2: Convert to fraction form
    484.53/667.11 = 379.49/x
  3. Step 3: Cross multiply
    484.53x = 667.11 × 379.49
  4. Step 4: Simplify right side
    484.53x = 253,158.24
  5. Step 5: Solve for x
    x = 253,158.24/484.53
  6. Step 6: Final answer
    x = 522.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.