Home / 378,639.73-522,524.33-206,561.37

Finding the Fourth Proportional to 378,639.73, 522,524.33 and 206,561.37

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Solution

The fourth proportional to 378,639.73, 522,524.33 and 206,561.37 is: 285,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,639.73 : 522,524.33 = 206,561.37 : x
  2. Step 2: Convert to fraction form
    378,639.73/522,524.33 = 206,561.37/x
  3. Step 3: Cross multiply
    378,639.73x = 522,524.33 × 206,561.37
  4. Step 4: Simplify right side
    378,639.73x = 107,933,341,463.13
  5. Step 5: Solve for x
    x = 107,933,341,463.13/378,639.73
  6. Step 6: Final answer
    x = 285,055.51

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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.