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Finding the Fourth Proportional to 348,438.80, 521,336.46 and 206,360.12

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Solution

The fourth proportional to 348,438.80, 521,336.46 and 206,360.12 is: 308,757.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,438.80 : 521,336.46 = 206,360.12 : x
  2. Step 2: Convert to fraction form
    348,438.80/521,336.46 = 206,360.12/x
  3. Step 3: Cross multiply
    348,438.80x = 521,336.46 × 206,360.12
  4. Step 4: Simplify right side
    348,438.80x = 107,583,054,445.98
  5. Step 5: Solve for x
    x = 107,583,054,445.98/348,438.80
  6. Step 6: Final answer
    x = 308,757.39

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