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Finding the Fourth Proportional to 269,734.80, 404,656.20 and 80,194.80

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Solution

The fourth proportional to 269,734.80, 404,656.20 and 80,194.80 is: 120,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,734.80 : 404,656.20 = 80,194.80 : x
  2. Step 2: Convert to fraction form
    269,734.80/404,656.20 = 80,194.80/x
  3. Step 3: Cross multiply
    269,734.80x = 404,656.20 × 80,194.80
  4. Step 4: Simplify right side
    269,734.80x = 32,451,323,027.76
  5. Step 5: Solve for x
    x = 32,451,323,027.76/269,734.80
  6. Step 6: Final answer
    x = 120,308.25

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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.