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Finding the Fourth Proportional to 483.25, 724.13 and 251.79

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Solution

The fourth proportional to 483.25, 724.13 and 251.79 is: 377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.25 : 724.13 = 251.79 : x
  2. Step 2: Convert to fraction form
    483.25/724.13 = 251.79/x
  3. Step 3: Cross multiply
    483.25x = 724.13 × 251.79
  4. Step 4: Simplify right side
    483.25x = 182,328.38
  5. Step 5: Solve for x
    x = 182,328.38/483.25
  6. Step 6: Final answer
    x = 377.30

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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.