Home / 274,965.03-379,682.64-206,863.61

Finding the Fourth Proportional to 274,965.03, 379,682.64 and 206,863.61

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Solution

The fourth proportional to 274,965.03, 379,682.64 and 206,863.61 is: 285,645.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,965.03 : 379,682.64 = 206,863.61 : x
  2. Step 2: Convert to fraction form
    274,965.03/379,682.64 = 206,863.61/x
  3. Step 3: Cross multiply
    274,965.03x = 379,682.64 × 206,863.61
  4. Step 4: Simplify right side
    274,965.03x = 78,542,519,666.32
  5. Step 5: Solve for x
    x = 78,542,519,666.32/274,965.03
  6. Step 6: Final answer
    x = 285,645.49

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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.