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Finding the Fourth Proportional to 279,605.22, 419,305.74 and 102,059.70

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Solution

The fourth proportional to 279,605.22, 419,305.74 and 102,059.70 is: 153,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,605.22 : 419,305.74 = 102,059.70 : x
  2. Step 2: Convert to fraction form
    279,605.22/419,305.74 = 102,059.70/x
  3. Step 3: Cross multiply
    279,605.22x = 419,305.74 × 102,059.70
  4. Step 4: Simplify right side
    279,605.22x = 42,794,218,032.68
  5. Step 5: Solve for x
    x = 42,794,218,032.68/279,605.22
  6. Step 6: Final answer
    x = 153,052.29

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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.