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Finding the Fourth Proportional to 222,037.20, 332,940.60 and 81,723.60

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Solution

The fourth proportional to 222,037.20, 332,940.60 and 81,723.60 is: 122,543.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,037.20 : 332,940.60 = 81,723.60 : x
  2. Step 2: Convert to fraction form
    222,037.20/332,940.60 = 81,723.60/x
  3. Step 3: Cross multiply
    222,037.20x = 332,940.60 × 81,723.60
  4. Step 4: Simplify right side
    222,037.20x = 27,209,104,418.16
  5. Step 5: Solve for x
    x = 27,209,104,418.16/222,037.20
  6. Step 6: Final answer
    x = 122,543.00

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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.