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Finding the Fourth Proportional to 234.93, 325.73 and 220.97

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Solution

The fourth proportional to 234.93, 325.73 and 220.97 is: 306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.93 : 325.73 = 220.97 : x
  2. Step 2: Convert to fraction form
    234.93/325.73 = 220.97/x
  3. Step 3: Cross multiply
    234.93x = 325.73 × 220.97
  4. Step 4: Simplify right side
    234.93x = 71,973.82
  5. Step 5: Solve for x
    x = 71,973.82/234.93
  6. Step 6: Final answer
    x = 306.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.