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Finding the Fourth Proportional to 392,195.88, 541,219.80 and 222,426.36

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Solution

The fourth proportional to 392,195.88, 541,219.80 and 222,426.36 is: 306,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,195.88 : 541,219.80 = 222,426.36 : x
  2. Step 2: Convert to fraction form
    392,195.88/541,219.80 = 222,426.36/x
  3. Step 3: Cross multiply
    392,195.88x = 541,219.80 × 222,426.36
  4. Step 4: Simplify right side
    392,195.88x = 120,381,550,073.93
  5. Step 5: Solve for x
    x = 120,381,550,073.93/392,195.88
  6. Step 6: Final answer
    x = 306,942.41

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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.