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Finding the Fourth Proportional to 305,896.60, 422,137.78 and 169,926.86

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Solution

The fourth proportional to 305,896.60, 422,137.78 and 169,926.86 is: 234,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,896.60 : 422,137.78 = 169,926.86 : x
  2. Step 2: Convert to fraction form
    305,896.60/422,137.78 = 169,926.86/x
  3. Step 3: Cross multiply
    305,896.60x = 422,137.78 × 169,926.86
  4. Step 4: Simplify right side
    305,896.60x = 71,732,548,073.30
  5. Step 5: Solve for x
    x = 71,732,548,073.30/305,896.60
  6. Step 6: Final answer
    x = 234,499.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.