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Finding the Fourth Proportional to 254,273.76, 381,418.50 and 127,919.15

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Solution

The fourth proportional to 254,273.76, 381,418.50 and 127,919.15 is: 191,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,273.76 : 381,418.50 = 127,919.15 : x
  2. Step 2: Convert to fraction form
    254,273.76/381,418.50 = 127,919.15/x
  3. Step 3: Cross multiply
    254,273.76x = 381,418.50 × 127,919.15
  4. Step 4: Simplify right side
    254,273.76x = 48,790,729,237.88
  5. Step 5: Solve for x
    x = 48,790,729,237.88/254,273.76
  6. Step 6: Final answer
    x = 191,882.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.