Home / 219,205.62-328,610.97-78,865.50

Finding the Fourth Proportional to 219,205.62, 328,610.97 and 78,865.50

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Solution

The fourth proportional to 219,205.62, 328,610.97 and 78,865.50 is: 118,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,205.62 : 328,610.97 = 78,865.50 : x
  2. Step 2: Convert to fraction form
    219,205.62/328,610.97 = 78,865.50/x
  3. Step 3: Cross multiply
    219,205.62x = 328,610.97 × 78,865.50
  4. Step 4: Simplify right side
    219,205.62x = 25,916,068,454.54
  5. Step 5: Solve for x
    x = 25,916,068,454.54/219,205.62
  6. Step 6: Final answer
    x = 118,227.21

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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.