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Finding the Fourth Proportional to 252.11, 377.70 and 200.81

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Solution

The fourth proportional to 252.11, 377.70 and 200.81 is: 300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.11 : 377.70 = 200.81 : x
  2. Step 2: Convert to fraction form
    252.11/377.70 = 200.81/x
  3. Step 3: Cross multiply
    252.11x = 377.70 × 200.81
  4. Step 4: Simplify right side
    252.11x = 75,846.13
  5. Step 5: Solve for x
    x = 75,846.13/252.11
  6. Step 6: Final answer
    x = 300.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.