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Finding the Fourth Proportional to 235.13, 351.03 and 200.90

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Solution

The fourth proportional to 235.13, 351.03 and 200.90 is: 299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.13 : 351.03 = 200.90 : x
  2. Step 2: Convert to fraction form
    235.13/351.03 = 200.90/x
  3. Step 3: Cross multiply
    235.13x = 351.03 × 200.90
  4. Step 4: Simplify right side
    235.13x = 70,523.56
  5. Step 5: Solve for x
    x = 70,523.56/235.13
  6. Step 6: Final answer
    x = 299.94

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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.