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Finding the Fourth Proportional to 226,724.60, 340,086.90 and 215,319.80

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Solution

The fourth proportional to 226,724.60, 340,086.90 and 215,319.80 is: 322,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,724.60 : 340,086.90 = 215,319.80 : x
  2. Step 2: Convert to fraction form
    226,724.60/340,086.90 = 215,319.80/x
  3. Step 3: Cross multiply
    226,724.60x = 340,086.90 × 215,319.80
  4. Step 4: Simplify right side
    226,724.60x = 73,227,443,290.62
  5. Step 5: Solve for x
    x = 73,227,443,290.62/226,724.60
  6. Step 6: Final answer
    x = 322,979.70

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