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Finding the Fourth Proportional to 179,805, 269,720.46 and 68,997

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Solution

The fourth proportional to 179,805, 269,720.46 and 68,997 is: 103,500.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,805 : 269,720.46 = 68,997 : x
  2. Step 2: Convert to fraction form
    179,805/269,720.46 = 68,997/x
  3. Step 3: Cross multiply
    179,805x = 269,720.46 × 68,997
  4. Step 4: Simplify right side
    179,805x = 18,609,902,578.62
  5. Step 5: Solve for x
    x = 18,609,902,578.62/179,805
  6. Step 6: Final answer
    x = 103,500.47

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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.