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Finding the Fourth Proportional to 217,759.50, 326,659.89 and 84,649.98

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Solution

The fourth proportional to 217,759.50, 326,659.89 and 84,649.98 is: 126,982.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,759.50 : 326,659.89 = 84,649.98 : x
  2. Step 2: Convert to fraction form
    217,759.50/326,659.89 = 84,649.98/x
  3. Step 3: Cross multiply
    217,759.50x = 326,659.89 × 84,649.98
  4. Step 4: Simplify right side
    217,759.50x = 27,651,753,155.30
  5. Step 5: Solve for x
    x = 27,651,753,155.30/217,759.50
  6. Step 6: Final answer
    x = 126,982.99

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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.