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Finding the Fourth Proportional to 376.39, 519.33 and 252.28

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Solution

The fourth proportional to 376.39, 519.33 and 252.28 is: 348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.39 : 519.33 = 252.28 : x
  2. Step 2: Convert to fraction form
    376.39/519.33 = 252.28/x
  3. Step 3: Cross multiply
    376.39x = 519.33 × 252.28
  4. Step 4: Simplify right side
    376.39x = 131,016.57
  5. Step 5: Solve for x
    x = 131,016.57/376.39
  6. Step 6: Final answer
    x = 348.09

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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.