Home / 378,277.25-522,006.87-206,191.43

Finding the Fourth Proportional to 378,277.25, 522,006.87 and 206,191.43

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Solution

The fourth proportional to 378,277.25, 522,006.87 and 206,191.43 is: 284,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,277.25 : 522,006.87 = 206,191.43 : x
  2. Step 2: Convert to fraction form
    378,277.25/522,006.87 = 206,191.43/x
  3. Step 3: Cross multiply
    378,277.25x = 522,006.87 × 206,191.43
  4. Step 4: Simplify right side
    378,277.25x = 107,633,340,385.09
  5. Step 5: Solve for x
    x = 107,633,340,385.09/378,277.25
  6. Step 6: Final answer
    x = 284,535.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.