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Finding the Fourth Proportional to 421,668.24, 632,372.20 and 221,880.12

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Solution

The fourth proportional to 421,668.24, 632,372.20 and 221,880.12 is: 332,751.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,668.24 : 632,372.20 = 221,880.12 : x
  2. Step 2: Convert to fraction form
    421,668.24/632,372.20 = 221,880.12/x
  3. Step 3: Cross multiply
    421,668.24x = 632,372.20 × 221,880.12
  4. Step 4: Simplify right side
    421,668.24x = 140,310,819,620.66
  5. Step 5: Solve for x
    x = 140,310,819,620.66/421,668.24
  6. Step 6: Final answer
    x = 332,751.69

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