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Finding the Fourth Proportional to 268.91, 404.96 and 236.75

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Solution

The fourth proportional to 268.91, 404.96 and 236.75 is: 356.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.91 : 404.96 = 236.75 : x
  2. Step 2: Convert to fraction form
    268.91/404.96 = 236.75/x
  3. Step 3: Cross multiply
    268.91x = 404.96 × 236.75
  4. Step 4: Simplify right side
    268.91x = 95,874.28
  5. Step 5: Solve for x
    x = 95,874.28/268.91
  6. Step 6: Final answer
    x = 356.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.