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Finding the Fourth Proportional to 293.80, 404.52 and 243.81

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Solution

The fourth proportional to 293.80, 404.52 and 243.81 is: 335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.80 : 404.52 = 243.81 : x
  2. Step 2: Convert to fraction form
    293.80/404.52 = 243.81/x
  3. Step 3: Cross multiply
    293.80x = 404.52 × 243.81
  4. Step 4: Simplify right side
    293.80x = 98,622.78
  5. Step 5: Solve for x
    x = 98,622.78/293.80
  6. Step 6: Final answer
    x = 335.68

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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.