Home / 276,245.57-381,110.94-155,359.14

Finding the Fourth Proportional to 276,245.57, 381,110.94 and 155,359.14

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Solution

The fourth proportional to 276,245.57, 381,110.94 and 155,359.14 is: 214,334.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,245.57 : 381,110.94 = 155,359.14 : x
  2. Step 2: Convert to fraction form
    276,245.57/381,110.94 = 155,359.14/x
  3. Step 3: Cross multiply
    276,245.57x = 381,110.94 × 155,359.14
  4. Step 4: Simplify right side
    276,245.57x = 59,209,067,882.99
  5. Step 5: Solve for x
    x = 59,209,067,882.99/276,245.57
  6. Step 6: Final answer
    x = 214,334.91

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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.