Home / 276,260.54-381,273.27-155,406.92

Finding the Fourth Proportional to 276,260.54, 381,273.27 and 155,406.92

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Solution

The fourth proportional to 276,260.54, 381,273.27 and 155,406.92 is: 214,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,260.54 : 381,273.27 = 155,406.92 : x
  2. Step 2: Convert to fraction form
    276,260.54/381,273.27 = 155,406.92/x
  3. Step 3: Cross multiply
    276,260.54x = 381,273.27 × 155,406.92
  4. Step 4: Simplify right side
    276,260.54x = 59,252,504,569.03
  5. Step 5: Solve for x
    x = 59,252,504,569.03/276,260.54
  6. Step 6: Final answer
    x = 214,480.52

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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.