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Finding the Fourth Proportional to 259,834.78, 358,573.20 and 140,602.78

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Solution

The fourth proportional to 259,834.78, 358,573.20 and 140,602.78 is: 194,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,834.78 : 358,573.20 = 140,602.78 : x
  2. Step 2: Convert to fraction form
    259,834.78/358,573.20 = 140,602.78/x
  3. Step 3: Cross multiply
    259,834.78x = 358,573.20 × 140,602.78
  4. Step 4: Simplify right side
    259,834.78x = 50,416,388,753.50
  5. Step 5: Solve for x
    x = 50,416,388,753.50/259,834.78
  6. Step 6: Final answer
    x = 194,032.49

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