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Finding the Fourth Proportional to 234.65, 351.97 and 61.33

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Solution

The fourth proportional to 234.65, 351.97 and 61.33 is: 91.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.65 : 351.97 = 61.33 : x
  2. Step 2: Convert to fraction form
    234.65/351.97 = 61.33/x
  3. Step 3: Cross multiply
    234.65x = 351.97 × 61.33
  4. Step 4: Simplify right side
    234.65x = 21,586.32
  5. Step 5: Solve for x
    x = 21,586.32/234.65
  6. Step 6: Final answer
    x = 91.99

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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.