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Finding the Fourth Proportional to 230,738.40, 346,262.40 and 80,978.40

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Solution

The fourth proportional to 230,738.40, 346,262.40 and 80,978.40 is: 121,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,738.40 : 346,262.40 = 80,978.40 : x
  2. Step 2: Convert to fraction form
    230,738.40/346,262.40 = 80,978.40/x
  3. Step 3: Cross multiply
    230,738.40x = 346,262.40 × 80,978.40
  4. Step 4: Simplify right side
    230,738.40x = 28,039,775,132.16
  5. Step 5: Solve for x
    x = 28,039,775,132.16/230,738.40
  6. Step 6: Final answer
    x = 121,521.93

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