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Finding the Fourth Proportional to 293.59, 404.87 and 223.88

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Solution

The fourth proportional to 293.59, 404.87 and 223.88 is: 308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.59 : 404.87 = 223.88 : x
  2. Step 2: Convert to fraction form
    293.59/404.87 = 223.88/x
  3. Step 3: Cross multiply
    293.59x = 404.87 × 223.88
  4. Step 4: Simplify right side
    293.59x = 90,640.83
  5. Step 5: Solve for x
    x = 90,640.83/293.59
  6. Step 6: Final answer
    x = 308.74

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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.