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Finding the Fourth Proportional to 484.33, 726.53 and 195.78

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Solution

The fourth proportional to 484.33, 726.53 and 195.78 is: 293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.33 : 726.53 = 195.78 : x
  2. Step 2: Convert to fraction form
    484.33/726.53 = 195.78/x
  3. Step 3: Cross multiply
    484.33x = 726.53 × 195.78
  4. Step 4: Simplify right side
    484.33x = 142,240.04
  5. Step 5: Solve for x
    x = 142,240.04/484.33
  6. Step 6: Final answer
    x = 293.68

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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.