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Finding the Fourth Proportional to 267.29, 368.90 and 193.85

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Solution

The fourth proportional to 267.29, 368.90 and 193.85 is: 267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.29 : 368.90 = 193.85 : x
  2. Step 2: Convert to fraction form
    267.29/368.90 = 193.85/x
  3. Step 3: Cross multiply
    267.29x = 368.90 × 193.85
  4. Step 4: Simplify right side
    267.29x = 71,511.27
  5. Step 5: Solve for x
    x = 71,511.27/267.29
  6. Step 6: Final answer
    x = 267.54

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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.