Home / 276,412.60-381,444.78-155,553.85

Finding the Fourth Proportional to 276,412.60, 381,444.78 and 155,553.85

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Solution

The fourth proportional to 276,412.60, 381,444.78 and 155,553.85 is: 214,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,412.60 : 381,444.78 = 155,553.85 : x
  2. Step 2: Convert to fraction form
    276,412.60/381,444.78 = 155,553.85/x
  3. Step 3: Cross multiply
    276,412.60x = 381,444.78 × 155,553.85
  4. Step 4: Simplify right side
    276,412.60x = 59,335,204,091.40
  5. Step 5: Solve for x
    x = 59,335,204,091.40/276,412.60
  6. Step 6: Final answer
    x = 214,661.72

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1.5x scale

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.