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Finding the Fourth Proportional to 275,640.50, 413,489.36 and 75,960.92

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Solution

The fourth proportional to 275,640.50, 413,489.36 and 75,960.92 is: 113,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,640.50 : 413,489.36 = 75,960.92 : x
  2. Step 2: Convert to fraction form
    275,640.50/413,489.36 = 75,960.92/x
  3. Step 3: Cross multiply
    275,640.50x = 413,489.36 × 75,960.92
  4. Step 4: Simplify right side
    275,640.50x = 31,409,032,849.73
  5. Step 5: Solve for x
    x = 31,409,032,849.73/275,640.50
  6. Step 6: Final answer
    x = 113,949.27

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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.