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Finding the Fourth Proportional to 394,886.09, 544,942.88 and 213,597.97

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Solution

The fourth proportional to 394,886.09, 544,942.88 and 213,597.97 is: 294,765.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,886.09 : 544,942.88 = 213,597.97 : x
  2. Step 2: Convert to fraction form
    394,886.09/544,942.88 = 213,597.97/x
  3. Step 3: Cross multiply
    394,886.09x = 544,942.88 × 213,597.97
  4. Step 4: Simplify right side
    394,886.09x = 116,398,691,304.60
  5. Step 5: Solve for x
    x = 116,398,691,304.60/394,886.09
  6. Step 6: Final answer
    x = 294,765.23

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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.