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Finding the Fourth Proportional to 394,777.40, 544,786.02 and 222,695.73

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Solution

The fourth proportional to 394,777.40, 544,786.02 and 222,695.73 is: 307,316.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,777.40 : 544,786.02 = 222,695.73 : x
  2. Step 2: Convert to fraction form
    394,777.40/544,786.02 = 222,695.73/x
  3. Step 3: Cross multiply
    394,777.40x = 544,786.02 × 222,695.73
  4. Step 4: Simplify right side
    394,777.40x = 121,321,520,417.70
  5. Step 5: Solve for x
    x = 121,321,520,417.70/394,777.40
  6. Step 6: Final answer
    x = 307,316.28

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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.