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Finding the Fourth Proportional to 418.23, 576.83 and 252.38

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Solution

The fourth proportional to 418.23, 576.83 and 252.38 is: 348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.23 : 576.83 = 252.38 : x
  2. Step 2: Convert to fraction form
    418.23/576.83 = 252.38/x
  3. Step 3: Cross multiply
    418.23x = 576.83 × 252.38
  4. Step 4: Simplify right side
    418.23x = 145,576.21
  5. Step 5: Solve for x
    x = 145,576.21/418.23
  6. Step 6: Final answer
    x = 348.08

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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.