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Finding the Fourth Proportional to 279,755.84, 419,334.97 and 159,554.01

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Solution

The fourth proportional to 279,755.84, 419,334.97 and 159,554.01 is: 239,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,755.84 : 419,334.97 = 159,554.01 : x
  2. Step 2: Convert to fraction form
    279,755.84/419,334.97 = 159,554.01/x
  3. Step 3: Cross multiply
    279,755.84x = 419,334.97 × 159,554.01
  4. Step 4: Simplify right side
    279,755.84x = 66,906,575,996.73
  5. Step 5: Solve for x
    x = 66,906,575,996.73/279,755.84
  6. Step 6: Final answer
    x = 239,160.61

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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.