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Finding the Fourth Proportional to 253.10, 377.49 and 227.18

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Solution

The fourth proportional to 253.10, 377.49 and 227.18 is: 338.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.10 : 377.49 = 227.18 : x
  2. Step 2: Convert to fraction form
    253.10/377.49 = 227.18/x
  3. Step 3: Cross multiply
    253.10x = 377.49 × 227.18
  4. Step 4: Simplify right side
    253.10x = 85,757.04
  5. Step 5: Solve for x
    x = 85,757.04/253.10
  6. Step 6: Final answer
    x = 338.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.