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Finding the Fourth Proportional to 323,977.94, 485,934.09 and 87,344.54

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Solution

The fourth proportional to 323,977.94, 485,934.09 and 87,344.54 is: 131,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,977.94 : 485,934.09 = 87,344.54 : x
  2. Step 2: Convert to fraction form
    323,977.94/485,934.09 = 87,344.54/x
  3. Step 3: Cross multiply
    323,977.94x = 485,934.09 × 87,344.54
  4. Step 4: Simplify right side
    323,977.94x = 42,443,689,561.37
  5. Step 5: Solve for x
    x = 42,443,689,561.37/323,977.94
  6. Step 6: Final answer
    x = 131,007.96

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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.