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Finding the Fourth Proportional to 268.89, 402.57 and 200.73

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Solution

The fourth proportional to 268.89, 402.57 and 200.73 is: 300.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.89 : 402.57 = 200.73 : x
  2. Step 2: Convert to fraction form
    268.89/402.57 = 200.73/x
  3. Step 3: Cross multiply
    268.89x = 402.57 × 200.73
  4. Step 4: Simplify right side
    268.89x = 80,807.88
  5. Step 5: Solve for x
    x = 80,807.88/268.89
  6. Step 6: Final answer
    x = 300.52

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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.