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Finding the Fourth Proportional to 268.14, 401.82 and 146.46

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Solution

The fourth proportional to 268.14, 401.82 and 146.46 is: 219.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.14 : 401.82 = 146.46 : x
  2. Step 2: Convert to fraction form
    268.14/401.82 = 146.46/x
  3. Step 3: Cross multiply
    268.14x = 401.82 × 146.46
  4. Step 4: Simplify right side
    268.14x = 58,850.56
  5. Step 5: Solve for x
    x = 58,850.56/268.14
  6. Step 6: Final answer
    x = 219.48

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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.