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Finding the Fourth Proportional to 194.09, 267.73 and 115.38

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Solution

The fourth proportional to 194.09, 267.73 and 115.38 is: 159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.09 : 267.73 = 115.38 : x
  2. Step 2: Convert to fraction form
    194.09/267.73 = 115.38/x
  3. Step 3: Cross multiply
    194.09x = 267.73 × 115.38
  4. Step 4: Simplify right side
    194.09x = 30,890.69
  5. Step 5: Solve for x
    x = 30,890.69/194.09
  6. Step 6: Final answer
    x = 159.16

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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.