Home / 276,222.45-381,183.18-155,363.67

Finding the Fourth Proportional to 276,222.45, 381,183.18 and 155,363.67

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Solution

The fourth proportional to 276,222.45, 381,183.18 and 155,363.67 is: 214,399.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,222.45 : 381,183.18 = 155,363.67 : x
  2. Step 2: Convert to fraction form
    276,222.45/381,183.18 = 155,363.67/x
  3. Step 3: Cross multiply
    276,222.45x = 381,183.18 × 155,363.67
  4. Step 4: Simplify right side
    276,222.45x = 59,222,017,787.07
  5. Step 5: Solve for x
    x = 59,222,017,787.07/276,222.45
  6. Step 6: Final answer
    x = 214,399.73

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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.