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Finding the Fourth Proportional to 273,270.80, 409,906.20 and 255,645.20

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Solution

The fourth proportional to 273,270.80, 409,906.20 and 255,645.20 is: 383,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,270.80 : 409,906.20 = 255,645.20 : x
  2. Step 2: Convert to fraction form
    273,270.80/409,906.20 = 255,645.20/x
  3. Step 3: Cross multiply
    273,270.80x = 409,906.20 × 255,645.20
  4. Step 4: Simplify right side
    273,270.80x = 104,790,552,480.24
  5. Step 5: Solve for x
    x = 104,790,552,480.24/273,270.80
  6. Step 6: Final answer
    x = 383,467.80

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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.