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Finding the Fourth Proportional to 221,105.60, 331,593.60 and 102,748.40

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Solution

The fourth proportional to 221,105.60, 331,593.60 and 102,748.40 is: 154,092.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,105.60 : 331,593.60 = 102,748.40 : x
  2. Step 2: Convert to fraction form
    221,105.60/331,593.60 = 102,748.40/x
  3. Step 3: Cross multiply
    221,105.60x = 331,593.60 × 102,748.40
  4. Step 4: Simplify right side
    221,105.60x = 34,070,711,850.24
  5. Step 5: Solve for x
    x = 34,070,711,850.24/221,105.60
  6. Step 6: Final answer
    x = 154,092.49

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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.