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Finding the Fourth Proportional to 481,517.33, 722,105.62 and 139,889.68

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Solution

The fourth proportional to 481,517.33, 722,105.62 and 139,889.68 is: 209,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,517.33 : 722,105.62 = 139,889.68 : x
  2. Step 2: Convert to fraction form
    481,517.33/722,105.62 = 139,889.68/x
  3. Step 3: Cross multiply
    481,517.33x = 722,105.62 × 139,889.68
  4. Step 4: Simplify right side
    481,517.33x = 101,015,126,014.86
  5. Step 5: Solve for x
    x = 101,015,126,014.86/481,517.33
  6. Step 6: Final answer
    x = 209,785.03

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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.