Home / 276,164.43-381,103.27-155,305.68

Finding the Fourth Proportional to 276,164.43, 381,103.27 and 155,305.68

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Solution

The fourth proportional to 276,164.43, 381,103.27 and 155,305.68 is: 214,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,164.43 : 381,103.27 = 155,305.68 : x
  2. Step 2: Convert to fraction form
    276,164.43/381,103.27 = 155,305.68/x
  3. Step 3: Cross multiply
    276,164.43x = 381,103.27 × 155,305.68
  4. Step 4: Simplify right side
    276,164.43x = 59,187,502,497.57
  5. Step 5: Solve for x
    x = 59,187,502,497.57/276,164.43
  6. Step 6: Final answer
    x = 214,319.79

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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.