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Finding the Fourth Proportional to 293.20, 404.65 and 176.76

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Solution

The fourth proportional to 293.20, 404.65 and 176.76 is: 243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.20 : 404.65 = 176.76 : x
  2. Step 2: Convert to fraction form
    293.20/404.65 = 176.76/x
  3. Step 3: Cross multiply
    293.20x = 404.65 × 176.76
  4. Step 4: Simplify right side
    293.20x = 71,525.93
  5. Step 5: Solve for x
    x = 71,525.93/293.20
  6. Step 6: Final answer
    x = 243.95

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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.