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Finding the Fourth Proportional to 279,607.60, 419,116.02 and 200,679.04

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Solution

The fourth proportional to 279,607.60, 419,116.02 and 200,679.04 is: 300,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,607.60 : 419,116.02 = 200,679.04 : x
  2. Step 2: Convert to fraction form
    279,607.60/419,116.02 = 200,679.04/x
  3. Step 3: Cross multiply
    279,607.60x = 419,116.02 × 200,679.04
  4. Step 4: Simplify right side
    279,607.60x = 84,107,800,542.22
  5. Step 5: Solve for x
    x = 84,107,800,542.22/279,607.60
  6. Step 6: Final answer
    x = 300,806.56

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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.