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Finding the Fourth Proportional to 234.03, 351.09 and 157.17

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Solution

The fourth proportional to 234.03, 351.09 and 157.17 is: 235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.03 : 351.09 = 157.17 : x
  2. Step 2: Convert to fraction form
    234.03/351.09 = 157.17/x
  3. Step 3: Cross multiply
    234.03x = 351.09 × 157.17
  4. Step 4: Simplify right side
    234.03x = 55,180.82
  5. Step 5: Solve for x
    x = 55,180.82/234.03
  6. Step 6: Final answer
    x = 235.79

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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.