Home / 521,769.20-782,362.20-222,198.80

Finding the Fourth Proportional to 521,769.20, 782,362.20 and 222,198.80

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Solution

The fourth proportional to 521,769.20, 782,362.20 and 222,198.80 is: 333,174.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,769.20 : 782,362.20 = 222,198.80 : x
  2. Step 2: Convert to fraction form
    521,769.20/782,362.20 = 222,198.80/x
  3. Step 3: Cross multiply
    521,769.20x = 782,362.20 × 222,198.80
  4. Step 4: Simplify right side
    521,769.20x = 173,839,942,005.36
  5. Step 5: Solve for x
    x = 173,839,942,005.36/521,769.20
  6. Step 6: Final answer
    x = 333,174.02

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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.