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Finding the Fourth Proportional to 219,991.44, 329,751 and 144,060.96

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Solution

The fourth proportional to 219,991.44, 329,751 and 144,060.96 is: 215,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,991.44 : 329,751 = 144,060.96 : x
  2. Step 2: Convert to fraction form
    219,991.44/329,751 = 144,060.96/x
  3. Step 3: Cross multiply
    219,991.44x = 329,751 × 144,060.96
  4. Step 4: Simplify right side
    219,991.44x = 47,504,245,620.96
  5. Step 5: Solve for x
    x = 47,504,245,620.96/219,991.44
  6. Step 6: Final answer
    x = 215,936.79

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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.