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Finding the Fourth Proportional to 267.11, 368.62 and 150.65

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Solution

The fourth proportional to 267.11, 368.62 and 150.65 is: 207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.11 : 368.62 = 150.65 : x
  2. Step 2: Convert to fraction form
    267.11/368.62 = 150.65/x
  3. Step 3: Cross multiply
    267.11x = 368.62 × 150.65
  4. Step 4: Simplify right side
    267.11x = 55,530.38
  5. Step 5: Solve for x
    x = 55,530.38/267.11
  6. Step 6: Final answer
    x = 207.90

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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.