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Finding the Fourth Proportional to 234.77, 352.26 and 90.59

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Solution

The fourth proportional to 234.77, 352.26 and 90.59 is: 135.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.77 : 352.26 = 90.59 : x
  2. Step 2: Convert to fraction form
    234.77/352.26 = 90.59/x
  3. Step 3: Cross multiply
    234.77x = 352.26 × 90.59
  4. Step 4: Simplify right side
    234.77x = 31,912.11
  5. Step 5: Solve for x
    x = 31,912.11/234.77
  6. Step 6: Final answer
    x = 135.93

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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.