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Finding the Fourth Proportional to 231,312.80, 346,450.80 and 189,840.80

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Solution

The fourth proportional to 231,312.80, 346,450.80 and 189,840.80 is: 284,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,312.80 : 346,450.80 = 189,840.80 : x
  2. Step 2: Convert to fraction form
    231,312.80/346,450.80 = 189,840.80/x
  3. Step 3: Cross multiply
    231,312.80x = 346,450.80 × 189,840.80
  4. Step 4: Simplify right side
    231,312.80x = 65,770,497,032.64
  5. Step 5: Solve for x
    x = 65,770,497,032.64/231,312.80
  6. Step 6: Final answer
    x = 284,335.74

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