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Finding the Fourth Proportional to 206,599.20, 309,898.80 and 197,851.20

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Solution

The fourth proportional to 206,599.20, 309,898.80 and 197,851.20 is: 296,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,599.20 : 309,898.80 = 197,851.20 : x
  2. Step 2: Convert to fraction form
    206,599.20/309,898.80 = 197,851.20/x
  3. Step 3: Cross multiply
    206,599.20x = 309,898.80 × 197,851.20
  4. Step 4: Simplify right side
    206,599.20x = 61,313,849,458.56
  5. Step 5: Solve for x
    x = 61,313,849,458.56/206,599.20
  6. Step 6: Final answer
    x = 296,776.80

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