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Finding the Fourth Proportional to 343,666.20, 515,687.22 and 133,312.44

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Solution

The fourth proportional to 343,666.20, 515,687.22 and 133,312.44 is: 200,041.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,666.20 : 515,687.22 = 133,312.44 : x
  2. Step 2: Convert to fraction form
    343,666.20/515,687.22 = 133,312.44/x
  3. Step 3: Cross multiply
    343,666.20x = 515,687.22 × 133,312.44
  4. Step 4: Simplify right side
    343,666.20x = 68,747,521,575.02
  5. Step 5: Solve for x
    x = 68,747,521,575.02/343,666.20
  6. Step 6: Final answer
    x = 200,041.56

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