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Finding the Fourth Proportional to 293.97, 441.15 and 111.39

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Solution

The fourth proportional to 293.97, 441.15 and 111.39 is: 167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.97 : 441.15 = 111.39 : x
  2. Step 2: Convert to fraction form
    293.97/441.15 = 111.39/x
  3. Step 3: Cross multiply
    293.97x = 441.15 × 111.39
  4. Step 4: Simplify right side
    293.97x = 49,139.70
  5. Step 5: Solve for x
    x = 49,139.70/293.97
  6. Step 6: Final answer
    x = 167.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.