Home / 276,679.56-381,830.58-155,859.24

Finding the Fourth Proportional to 276,679.56, 381,830.58 and 155,859.24

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Solution

The fourth proportional to 276,679.56, 381,830.58 and 155,859.24 is: 215,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,679.56 : 381,830.58 = 155,859.24 : x
  2. Step 2: Convert to fraction form
    276,679.56/381,830.58 = 155,859.24/x
  3. Step 3: Cross multiply
    276,679.56x = 381,830.58 × 155,859.24
  4. Step 4: Simplify right side
    276,679.56x = 59,511,824,007.56
  5. Step 5: Solve for x
    x = 59,511,824,007.56/276,679.56
  6. Step 6: Final answer
    x = 215,092.95

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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.