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Finding the Fourth Proportional to 378,296.66, 522,052.98 and 208,536.86

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Solution

The fourth proportional to 378,296.66, 522,052.98 and 208,536.86 is: 287,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,296.66 : 522,052.98 = 208,536.86 : x
  2. Step 2: Convert to fraction form
    378,296.66/522,052.98 = 208,536.86/x
  3. Step 3: Cross multiply
    378,296.66x = 522,052.98 × 208,536.86
  4. Step 4: Simplify right side
    378,296.66x = 108,867,289,202.84
  5. Step 5: Solve for x
    x = 108,867,289,202.84/378,296.66
  6. Step 6: Final answer
    x = 287,782.85

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