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Finding the Fourth Proportional to 268.69, 402.87 and 95.26

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Solution

The fourth proportional to 268.69, 402.87 and 95.26 is: 142.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.69 : 402.87 = 95.26 : x
  2. Step 2: Convert to fraction form
    268.69/402.87 = 95.26/x
  3. Step 3: Cross multiply
    268.69x = 402.87 × 95.26
  4. Step 4: Simplify right side
    268.69x = 38,377.40
  5. Step 5: Solve for x
    x = 38,377.40/268.69
  6. Step 6: Final answer
    x = 142.83

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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.