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Finding the Fourth Proportional to 234.09, 349.52 and 219.51

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Solution

The fourth proportional to 234.09, 349.52 and 219.51 is: 327.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.09 : 349.52 = 219.51 : x
  2. Step 2: Convert to fraction form
    234.09/349.52 = 219.51/x
  3. Step 3: Cross multiply
    234.09x = 349.52 × 219.51
  4. Step 4: Simplify right side
    234.09x = 76,722.04
  5. Step 5: Solve for x
    x = 76,722.04/234.09
  6. Step 6: Final answer
    x = 327.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.