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Finding the Fourth Proportional to 263,989.81, 363,953.50 and 209,722.04

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Solution

The fourth proportional to 263,989.81, 363,953.50 and 209,722.04 is: 289,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,989.81 : 363,953.50 = 209,722.04 : x
  2. Step 2: Convert to fraction form
    263,989.81/363,953.50 = 209,722.04/x
  3. Step 3: Cross multiply
    263,989.81x = 363,953.50 × 209,722.04
  4. Step 4: Simplify right side
    263,989.81x = 76,329,070,485.14
  5. Step 5: Solve for x
    x = 76,329,070,485.14/263,989.81
  6. Step 6: Final answer
    x = 289,136.43

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