Home / 276,164.42-381,103.27-155,305.67

Finding the Fourth Proportional to 276,164.42, 381,103.27 and 155,305.67

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Solution

The fourth proportional to 276,164.42, 381,103.27 and 155,305.67 is: 214,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,164.42 : 381,103.27 = 155,305.67 : x
  2. Step 2: Convert to fraction form
    276,164.42/381,103.27 = 155,305.67/x
  3. Step 3: Cross multiply
    276,164.42x = 381,103.27 × 155,305.67
  4. Step 4: Simplify right side
    276,164.42x = 59,187,498,686.54
  5. Step 5: Solve for x
    x = 59,187,498,686.54/276,164.42
  6. Step 6: Final answer
    x = 214,319.78

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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.