Home / 276,414.60-381,447.54-155,555.85

Finding the Fourth Proportional to 276,414.60, 381,447.54 and 155,555.85

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Solution

The fourth proportional to 276,414.60, 381,447.54 and 155,555.85 is: 214,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,414.60 : 381,447.54 = 155,555.85 : x
  2. Step 2: Convert to fraction form
    276,414.60/381,447.54 = 155,555.85/x
  3. Step 3: Cross multiply
    276,414.60x = 381,447.54 × 155,555.85
  4. Step 4: Simplify right side
    276,414.60x = 59,336,396,315.11
  5. Step 5: Solve for x
    x = 59,336,396,315.11/276,414.60
  6. Step 6: Final answer
    x = 214,664.48

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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.