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Finding the Fourth Proportional to 241.97, 334.13 and 154.79

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Solution

The fourth proportional to 241.97, 334.13 and 154.79 is: 213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.97 : 334.13 = 154.79 : x
  2. Step 2: Convert to fraction form
    241.97/334.13 = 154.79/x
  3. Step 3: Cross multiply
    241.97x = 334.13 × 154.79
  4. Step 4: Simplify right side
    241.97x = 51,719.95
  5. Step 5: Solve for x
    x = 51,719.95/241.97
  6. Step 6: Final answer
    x = 213.75

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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.