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Finding the Fourth Proportional to 394.52, 544.48 and 270.25

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Solution

The fourth proportional to 394.52, 544.48 and 270.25 is: 372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.52 : 544.48 = 270.25 : x
  2. Step 2: Convert to fraction form
    394.52/544.48 = 270.25/x
  3. Step 3: Cross multiply
    394.52x = 544.48 × 270.25
  4. Step 4: Simplify right side
    394.52x = 147,143.68
  5. Step 5: Solve for x
    x = 147,143.68/394.52
  6. Step 6: Final answer
    x = 372.97

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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.