Home / 274,535.12-378,789.96-161,335.76

Finding the Fourth Proportional to 274,535.12, 378,789.96 and 161,335.76

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Solution

The fourth proportional to 274,535.12, 378,789.96 and 161,335.76 is: 222,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,535.12 : 378,789.96 = 161,335.76 : x
  2. Step 2: Convert to fraction form
    274,535.12/378,789.96 = 161,335.76/x
  3. Step 3: Cross multiply
    274,535.12x = 378,789.96 × 161,335.76
  4. Step 4: Simplify right side
    274,535.12x = 61,112,366,076.97
  5. Step 5: Solve for x
    x = 61,112,366,076.97/274,535.12
  6. Step 6: Final answer
    x = 222,603.09

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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.