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Finding the Fourth Proportional to 267.72, 367.40 and 240.89

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Solution

The fourth proportional to 267.72, 367.40 and 240.89 is: 330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.72 : 367.40 = 240.89 : x
  2. Step 2: Convert to fraction form
    267.72/367.40 = 240.89/x
  3. Step 3: Cross multiply
    267.72x = 367.40 × 240.89
  4. Step 4: Simplify right side
    267.72x = 88,499.94
  5. Step 5: Solve for x
    x = 88,499.94/267.72
  6. Step 6: Final answer
    x = 330.57

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.