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Finding the Fourth Proportional to 293.19, 404.88 and 215.97

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Solution

The fourth proportional to 293.19, 404.88 and 215.97 is: 298.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.19 : 404.88 = 215.97 : x
  2. Step 2: Convert to fraction form
    293.19/404.88 = 215.97/x
  3. Step 3: Cross multiply
    293.19x = 404.88 × 215.97
  4. Step 4: Simplify right side
    293.19x = 87,440.85
  5. Step 5: Solve for x
    x = 87,440.85/293.19
  6. Step 6: Final answer
    x = 298.24

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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.