Home / 276,285.56-381,243.17-155,424.35

Finding the Fourth Proportional to 276,285.56, 381,243.17 and 155,424.35

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Solution

The fourth proportional to 276,285.56, 381,243.17 and 155,424.35 is: 214,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,285.56 : 381,243.17 = 155,424.35 : x
  2. Step 2: Convert to fraction form
    276,285.56/381,243.17 = 155,424.35/x
  3. Step 3: Cross multiply
    276,285.56x = 381,243.17 × 155,424.35
  4. Step 4: Simplify right side
    276,285.56x = 59,254,469,982.97
  5. Step 5: Solve for x
    x = 59,254,469,982.97/276,285.56
  6. Step 6: Final answer
    x = 214,468.21

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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.