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Finding the Fourth Proportional to 279,906.52, 419,816.49 and 102,372.01

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Solution

The fourth proportional to 279,906.52, 419,816.49 and 102,372.01 is: 153,542.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,906.52 : 419,816.49 = 102,372.01 : x
  2. Step 2: Convert to fraction form
    279,906.52/419,816.49 = 102,372.01/x
  3. Step 3: Cross multiply
    279,906.52x = 419,816.49 × 102,372.01
  4. Step 4: Simplify right side
    279,906.52x = 42,977,457,912.44
  5. Step 5: Solve for x
    x = 42,977,457,912.44/279,906.52
  6. Step 6: Final answer
    x = 153,542.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.