Home / 276,632.22-381,742.17-154,121.70

Finding the Fourth Proportional to 276,632.22, 381,742.17 and 154,121.70

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Solution

The fourth proportional to 276,632.22, 381,742.17 and 154,121.70 is: 212,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,632.22 : 381,742.17 = 154,121.70 : x
  2. Step 2: Convert to fraction form
    276,632.22/381,742.17 = 154,121.70/x
  3. Step 3: Cross multiply
    276,632.22x = 381,742.17 × 154,121.70
  4. Step 4: Simplify right side
    276,632.22x = 58,834,752,202.09
  5. Step 5: Solve for x
    x = 58,834,752,202.09/276,632.22
  6. Step 6: Final answer
    x = 212,682.21

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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.