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Finding the Fourth Proportional to 323,432.11, 485,241.77 and 133,857.48

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Solution

The fourth proportional to 323,432.11, 485,241.77 and 133,857.48 is: 200,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,432.11 : 485,241.77 = 133,857.48 : x
  2. Step 2: Convert to fraction form
    323,432.11/485,241.77 = 133,857.48/x
  3. Step 3: Cross multiply
    323,432.11x = 485,241.77 × 133,857.48
  4. Step 4: Simplify right side
    323,432.11x = 64,953,240,522.94
  5. Step 5: Solve for x
    x = 64,953,240,522.94/323,432.11
  6. Step 6: Final answer
    x = 200,824.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.