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Finding the Fourth Proportional to 242,623.20, 363,934.80 and 218,128.80

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Solution

The fourth proportional to 242,623.20, 363,934.80 and 218,128.80 is: 327,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,623.20 : 363,934.80 = 218,128.80 : x
  2. Step 2: Convert to fraction form
    242,623.20/363,934.80 = 218,128.80/x
  3. Step 3: Cross multiply
    242,623.20x = 363,934.80 × 218,128.80
  4. Step 4: Simplify right side
    242,623.20x = 79,384,661,202.24
  5. Step 5: Solve for x
    x = 79,384,661,202.24/242,623.20
  6. Step 6: Final answer
    x = 327,193.20

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