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Finding the Fourth Proportional to 267.62, 369.16 and 197.66

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Solution

The fourth proportional to 267.62, 369.16 and 197.66 is: 272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.62 : 369.16 = 197.66 : x
  2. Step 2: Convert to fraction form
    267.62/369.16 = 197.66/x
  3. Step 3: Cross multiply
    267.62x = 369.16 × 197.66
  4. Step 4: Simplify right side
    267.62x = 72,966.52
  5. Step 5: Solve for x
    x = 72,966.52/267.62
  6. Step 6: Final answer
    x = 272.65

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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.