Home / 276,517.24-381,630.90-155,682.52

Finding the Fourth Proportional to 276,517.24, 381,630.90 and 155,682.52

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Solution

The fourth proportional to 276,517.24, 381,630.90 and 155,682.52 is: 214,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,517.24 : 381,630.90 = 155,682.52 : x
  2. Step 2: Convert to fraction form
    276,517.24/381,630.90 = 155,682.52/x
  3. Step 3: Cross multiply
    276,517.24x = 381,630.90 × 155,682.52
  4. Step 4: Simplify right side
    276,517.24x = 59,413,260,221.87
  5. Step 5: Solve for x
    x = 59,413,260,221.87/276,517.24
  6. Step 6: Final answer
    x = 214,862.77

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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.