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Finding the Fourth Proportional to 323,428.11, 485,235.77 and 133,853.48

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Solution

The fourth proportional to 323,428.11, 485,235.77 and 133,853.48 is: 200,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,428.11 : 485,235.77 = 133,853.48 : x
  2. Step 2: Convert to fraction form
    323,428.11/485,235.77 = 133,853.48/x
  3. Step 3: Cross multiply
    323,428.11x = 485,235.77 × 133,853.48
  4. Step 4: Simplify right side
    323,428.11x = 64,950,495,159.17
  5. Step 5: Solve for x
    x = 64,950,495,159.17/323,428.11
  6. Step 6: Final answer
    x = 200,818.96

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