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Finding the Fourth Proportional to 279,754.49, 419,715.25 and 263,044.73

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Solution

The fourth proportional to 279,754.49, 419,715.25 and 263,044.73 is: 394,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,754.49 : 419,715.25 = 263,044.73 : x
  2. Step 2: Convert to fraction form
    279,754.49/419,715.25 = 263,044.73/x
  3. Step 3: Cross multiply
    279,754.49x = 419,715.25 × 263,044.73
  4. Step 4: Simplify right side
    279,754.49x = 110,403,881,856.94
  5. Step 5: Solve for x
    x = 110,403,881,856.94/279,754.49
  6. Step 6: Final answer
    x = 394,645.62

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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.