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Finding the Fourth Proportional to 269,638.44, 404,538.44 and 80,105.12

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Solution

The fourth proportional to 269,638.44, 404,538.44 and 80,105.12 is: 120,181.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,638.44 : 404,538.44 = 80,105.12 : x
  2. Step 2: Convert to fraction form
    269,638.44/404,538.44 = 80,105.12/x
  3. Step 3: Cross multiply
    269,638.44x = 404,538.44 × 80,105.12
  4. Step 4: Simplify right side
    269,638.44x = 32,405,600,280.81
  5. Step 5: Solve for x
    x = 32,405,600,280.81/269,638.44
  6. Step 6: Final answer
    x = 120,181.68

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1.5x scale

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.