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Finding the Fourth Proportional to 418.25, 576.94 and 252.36

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Solution

The fourth proportional to 418.25, 576.94 and 252.36 is: 348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.25 : 576.94 = 252.36 : x
  2. Step 2: Convert to fraction form
    418.25/576.94 = 252.36/x
  3. Step 3: Cross multiply
    418.25x = 576.94 × 252.36
  4. Step 4: Simplify right side
    418.25x = 145,596.58
  5. Step 5: Solve for x
    x = 145,596.58/418.25
  6. Step 6: Final answer
    x = 348.11

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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.