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Finding the Fourth Proportional to 194.31, 267.92 and 147.57

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Solution

The fourth proportional to 194.31, 267.92 and 147.57 is: 203.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.31 : 267.92 = 147.57 : x
  2. Step 2: Convert to fraction form
    194.31/267.92 = 147.57/x
  3. Step 3: Cross multiply
    194.31x = 267.92 × 147.57
  4. Step 4: Simplify right side
    194.31x = 39,535.61
  5. Step 5: Solve for x
    x = 39,535.61/194.31
  6. Step 6: Final answer
    x = 203.47

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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.