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Finding the Fourth Proportional to 234.18, 350.90 and 118.29

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Solution

The fourth proportional to 234.18, 350.90 and 118.29 is: 177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.18 : 350.90 = 118.29 : x
  2. Step 2: Convert to fraction form
    234.18/350.90 = 118.29/x
  3. Step 3: Cross multiply
    234.18x = 350.90 × 118.29
  4. Step 4: Simplify right side
    234.18x = 41,507.37
  5. Step 5: Solve for x
    x = 41,507.37/234.18
  6. Step 6: Final answer
    x = 177.25

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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.