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Finding the Fourth Proportional to 274,648.97, 378,819.78 and 252,060.77

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Solution

The fourth proportional to 274,648.97, 378,819.78 and 252,060.77 is: 347,664.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,648.97 : 378,819.78 = 252,060.77 : x
  2. Step 2: Convert to fraction form
    274,648.97/378,819.78 = 252,060.77/x
  3. Step 3: Cross multiply
    274,648.97x = 378,819.78 × 252,060.77
  4. Step 4: Simplify right side
    274,648.97x = 95,485,605,438.03
  5. Step 5: Solve for x
    x = 95,485,605,438.03/274,648.97
  6. Step 6: Final answer
    x = 347,664.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.