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Finding the Fourth Proportional to 397,714.25, 548,845.76 and 218,866.25

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Solution

The fourth proportional to 397,714.25, 548,845.76 and 218,866.25 is: 302,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,714.25 : 548,845.76 = 218,866.25 : x
  2. Step 2: Convert to fraction form
    397,714.25/548,845.76 = 218,866.25/x
  3. Step 3: Cross multiply
    397,714.25x = 548,845.76 × 218,866.25
  4. Step 4: Simplify right side
    397,714.25x = 120,123,813,319.60
  5. Step 5: Solve for x
    x = 120,123,813,319.60/397,714.25
  6. Step 6: Final answer
    x = 302,035.48

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