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Finding the Fourth Proportional to 234.00, 351.11 and 89.69

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Solution

The fourth proportional to 234.00, 351.11 and 89.69 is: 134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.00 : 351.11 = 89.69 : x
  2. Step 2: Convert to fraction form
    234.00/351.11 = 89.69/x
  3. Step 3: Cross multiply
    234.00x = 351.11 × 89.69
  4. Step 4: Simplify right side
    234.00x = 31,489.73
  5. Step 5: Solve for x
    x = 31,489.73/234.00
  6. Step 6: Final answer
    x = 134.57

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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.