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Finding the Fourth Proportional to 351,450.80, 484,971.24 and 208,186.64

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Solution

The fourth proportional to 351,450.80, 484,971.24 and 208,186.64 is: 287,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,450.80 : 484,971.24 = 208,186.64 : x
  2. Step 2: Convert to fraction form
    351,450.80/484,971.24 = 208,186.64/x
  3. Step 3: Cross multiply
    351,450.80x = 484,971.24 × 208,186.64
  4. Step 4: Simplify right side
    351,450.80x = 100,964,532,952.23
  5. Step 5: Solve for x
    x = 100,964,532,952.23/351,450.80
  6. Step 6: Final answer
    x = 287,279.28

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