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Finding the Fourth Proportional to 522,080.20, 782,828.70 and 222,509.80

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Solution

The fourth proportional to 522,080.20, 782,828.70 and 222,509.80 is: 333,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,080.20 : 782,828.70 = 222,509.80 : x
  2. Step 2: Convert to fraction form
    522,080.20/782,828.70 = 222,509.80/x
  3. Step 3: Cross multiply
    522,080.20x = 782,828.70 × 222,509.80
  4. Step 4: Simplify right side
    522,080.20x = 174,187,057,471.26
  5. Step 5: Solve for x
    x = 174,187,057,471.26/522,080.20
  6. Step 6: Final answer
    x = 333,640.42

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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.