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Finding the Fourth Proportional to 488.47, 674.10 and 267.43

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Solution

The fourth proportional to 488.47, 674.10 and 267.43 is: 369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.47 : 674.10 = 267.43 : x
  2. Step 2: Convert to fraction form
    488.47/674.10 = 267.43/x
  3. Step 3: Cross multiply
    488.47x = 674.10 × 267.43
  4. Step 4: Simplify right side
    488.47x = 180,274.56
  5. Step 5: Solve for x
    x = 180,274.56/488.47
  6. Step 6: Final answer
    x = 369.06

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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.