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Finding the Fourth Proportional to 394,252.67, 544,068.90 and 212,964.60

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Solution

The fourth proportional to 394,252.67, 544,068.90 and 212,964.60 is: 293,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,252.67 : 544,068.90 = 212,964.60 : x
  2. Step 2: Convert to fraction form
    394,252.67/544,068.90 = 212,964.60/x
  3. Step 3: Cross multiply
    394,252.67x = 544,068.90 × 212,964.60
  4. Step 4: Simplify right side
    394,252.67x = 115,867,415,660.94
  5. Step 5: Solve for x
    x = 115,867,415,660.94/394,252.67
  6. Step 6: Final answer
    x = 293,891.27

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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.