Home / 311,976.10-468,015.90-109,519.72

Finding the Fourth Proportional to 311,976.10, 468,015.90 and 109,519.72

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Solution

The fourth proportional to 311,976.10, 468,015.90 and 109,519.72 is: 164,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,976.10 : 468,015.90 = 109,519.72 : x
  2. Step 2: Convert to fraction form
    311,976.10/468,015.90 = 109,519.72/x
  3. Step 3: Cross multiply
    311,976.10x = 468,015.90 × 109,519.72
  4. Step 4: Simplify right side
    311,976.10x = 51,256,970,323.55
  5. Step 5: Solve for x
    x = 51,256,970,323.55/311,976.10
  6. Step 6: Final answer
    x = 164,297.75

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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.