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Finding the Fourth Proportional to 219,908.28, 329,861.52 and 79,634.04

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Solution

The fourth proportional to 219,908.28, 329,861.52 and 79,634.04 is: 119,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,908.28 : 329,861.52 = 79,634.04 : x
  2. Step 2: Convert to fraction form
    219,908.28/329,861.52 = 79,634.04/x
  3. Step 3: Cross multiply
    219,908.28x = 329,861.52 × 79,634.04
  4. Step 4: Simplify right side
    219,908.28x = 26,268,205,478.14
  5. Step 5: Solve for x
    x = 26,268,205,478.14/219,908.28
  6. Step 6: Final answer
    x = 119,450.73

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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.