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Finding the Fourth Proportional to 394,231.30, 544,039.41 and 212,943.22

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Solution

The fourth proportional to 394,231.30, 544,039.41 and 212,943.22 is: 293,861.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,231.30 : 544,039.41 = 212,943.22 : x
  2. Step 2: Convert to fraction form
    394,231.30/544,039.41 = 212,943.22/x
  3. Step 3: Cross multiply
    394,231.30x = 544,039.41 × 212,943.22
  4. Step 4: Simplify right side
    394,231.30x = 115,849,503,772.30
  5. Step 5: Solve for x
    x = 115,849,503,772.30/394,231.30
  6. Step 6: Final answer
    x = 293,861.76

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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.