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Finding the Fourth Proportional to 222,499.96, 306,819.84 and 154,593.88

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Solution

The fourth proportional to 222,499.96, 306,819.84 and 154,593.88 is: 213,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,499.96 : 306,819.84 = 154,593.88 : x
  2. Step 2: Convert to fraction form
    222,499.96/306,819.84 = 154,593.88/x
  3. Step 3: Cross multiply
    222,499.96x = 306,819.84 × 154,593.88
  4. Step 4: Simplify right side
    222,499.96x = 47,432,469,526.58
  5. Step 5: Solve for x
    x = 47,432,469,526.58/222,499.96
  6. Step 6: Final answer
    x = 213,179.68

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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.