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Finding the Fourth Proportional to 252.09, 379.95 and 252.09

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Solution

The fourth proportional to 252.09, 379.95 and 252.09 is: 379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.09 : 379.95 = 252.09 : x
  2. Step 2: Convert to fraction form
    252.09/379.95 = 252.09/x
  3. Step 3: Cross multiply
    252.09x = 379.95 × 252.09
  4. Step 4: Simplify right side
    252.09x = 95,781.60
  5. Step 5: Solve for x
    x = 95,781.60/252.09
  6. Step 6: Final answer
    x = 379.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.