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Finding the Fourth Proportional to 219,404.53, 329,106.84 and 79,163.11

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Solution

The fourth proportional to 219,404.53, 329,106.84 and 79,163.11 is: 118,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,404.53 : 329,106.84 = 79,163.11 : x
  2. Step 2: Convert to fraction form
    219,404.53/329,106.84 = 79,163.11/x
  3. Step 3: Cross multiply
    219,404.53x = 329,106.84 × 79,163.11
  4. Step 4: Simplify right side
    219,404.53x = 26,053,120,976.67
  5. Step 5: Solve for x
    x = 26,053,120,976.67/219,404.53
  6. Step 6: Final answer
    x = 118,744.68

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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.