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Finding the Fourth Proportional to 289,209.80, 433,814.70 and 149,241.80

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Solution

The fourth proportional to 289,209.80, 433,814.70 and 149,241.80 is: 223,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,209.80 : 433,814.70 = 149,241.80 : x
  2. Step 2: Convert to fraction form
    289,209.80/433,814.70 = 149,241.80/x
  3. Step 3: Cross multiply
    289,209.80x = 433,814.70 × 149,241.80
  4. Step 4: Simplify right side
    289,209.80x = 64,743,286,694.46
  5. Step 5: Solve for x
    x = 64,743,286,694.46/289,209.80
  6. Step 6: Final answer
    x = 223,862.70

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