Home / 226,721.20-340,067.40-76,961.20

Finding the Fourth Proportional to 226,721.20, 340,067.40 and 76,961.20

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Solution

The fourth proportional to 226,721.20, 340,067.40 and 76,961.20 is: 115,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,721.20 : 340,067.40 = 76,961.20 : x
  2. Step 2: Convert to fraction form
    226,721.20/340,067.40 = 76,961.20/x
  3. Step 3: Cross multiply
    226,721.20x = 340,067.40 × 76,961.20
  4. Step 4: Simplify right side
    226,721.20x = 26,171,995,184.88
  5. Step 5: Solve for x
    x = 26,171,995,184.88/226,721.20
  6. Step 6: Final answer
    x = 115,436.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.