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Finding the Fourth Proportional to 234.89, 352.39 and 119.30

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Solution

The fourth proportional to 234.89, 352.39 and 119.30 is: 178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.89 : 352.39 = 119.30 : x
  2. Step 2: Convert to fraction form
    234.89/352.39 = 119.30/x
  3. Step 3: Cross multiply
    234.89x = 352.39 × 119.30
  4. Step 4: Simplify right side
    234.89x = 42,038.51
  5. Step 5: Solve for x
    x = 42,038.51/234.89
  6. Step 6: Final answer
    x = 178.97

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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.