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Finding the Fourth Proportional to 234.60, 352.20 and 153.96

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Solution

The fourth proportional to 234.60, 352.20 and 153.96 is: 231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.60 : 352.20 = 153.96 : x
  2. Step 2: Convert to fraction form
    234.60/352.20 = 153.96/x
  3. Step 3: Cross multiply
    234.60x = 352.20 × 153.96
  4. Step 4: Simplify right side
    234.60x = 54,224.71
  5. Step 5: Solve for x
    x = 54,224.71/234.60
  6. Step 6: Final answer
    x = 231.14

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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.