Home / 276,769.36-381,940.03-155,949.56

Finding the Fourth Proportional to 276,769.36, 381,940.03 and 155,949.56

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Solution

The fourth proportional to 276,769.36, 381,940.03 and 155,949.56 is: 215,209.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,769.36 : 381,940.03 = 155,949.56 : x
  2. Step 2: Convert to fraction form
    276,769.36/381,940.03 = 155,949.56/x
  3. Step 3: Cross multiply
    276,769.36x = 381,940.03 × 155,949.56
  4. Step 4: Simplify right side
    276,769.36x = 59,563,379,624.89
  5. Step 5: Solve for x
    x = 59,563,379,624.89/276,769.36
  6. Step 6: Final answer
    x = 215,209.44

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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.