Home / 273,974.27-378,083.21-153,115.43

Finding the Fourth Proportional to 273,974.27, 378,083.21 and 153,115.43

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Solution

The fourth proportional to 273,974.27, 378,083.21 and 153,115.43 is: 211,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,974.27 : 378,083.21 = 153,115.43 : x
  2. Step 2: Convert to fraction form
    273,974.27/378,083.21 = 153,115.43/x
  3. Step 3: Cross multiply
    273,974.27x = 378,083.21 × 153,115.43
  4. Step 4: Simplify right side
    273,974.27x = 57,890,370,618.94
  5. Step 5: Solve for x
    x = 57,890,370,618.94/273,974.27
  6. Step 6: Final answer
    x = 211,298.57

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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.