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Finding the Fourth Proportional to 269,908.74, 404,792.37 and 80,318.25

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Solution

The fourth proportional to 269,908.74, 404,792.37 and 80,318.25 is: 120,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,908.74 : 404,792.37 = 80,318.25 : x
  2. Step 2: Convert to fraction form
    269,908.74/404,792.37 = 80,318.25/x
  3. Step 3: Cross multiply
    269,908.74x = 404,792.37 × 80,318.25
  4. Step 4: Simplify right side
    269,908.74x = 32,512,214,771.75
  5. Step 5: Solve for x
    x = 32,512,214,771.75/269,908.74
  6. Step 6: Final answer
    x = 120,456.32

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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.