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Finding the Fourth Proportional to 323,600.20, 485,619.00 and 113,239.96

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Solution

The fourth proportional to 323,600.20, 485,619.00 and 113,239.96 is: 169,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,600.20 : 485,619.00 = 113,239.96 : x
  2. Step 2: Convert to fraction form
    323,600.20/485,619.00 = 113,239.96/x
  3. Step 3: Cross multiply
    323,600.20x = 485,619.00 × 113,239.96
  4. Step 4: Simplify right side
    323,600.20x = 54,991,474,496.54
  5. Step 5: Solve for x
    x = 54,991,474,496.54/323,600.20
  6. Step 6: Final answer
    x = 169,936.47

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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.