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Finding the Fourth Proportional to 312,104.79, 467,960.36 and 171,961.83

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Solution

The fourth proportional to 312,104.79, 467,960.36 and 171,961.83 is: 257,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,104.79 : 467,960.36 = 171,961.83 : x
  2. Step 2: Convert to fraction form
    312,104.79/467,960.36 = 171,961.83/x
  3. Step 3: Cross multiply
    312,104.79x = 467,960.36 × 171,961.83
  4. Step 4: Simplify right side
    312,104.79x = 80,471,319,013.25
  5. Step 5: Solve for x
    x = 80,471,319,013.25/312,104.79
  6. Step 6: Final answer
    x = 257,834.30

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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.