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Finding the Fourth Proportional to 664,003, 996,013.14 and 220,771

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Solution

The fourth proportional to 664,003, 996,013.14 and 220,771 is: 331,159.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,003 : 996,013.14 = 220,771 : x
  2. Step 2: Convert to fraction form
    664,003/996,013.14 = 220,771/x
  3. Step 3: Cross multiply
    664,003x = 996,013.14 × 220,771
  4. Step 4: Simplify right side
    664,003x = 219,890,816,930.94
  5. Step 5: Solve for x
    x = 219,890,816,930.94/664,003
  6. Step 6: Final answer
    x = 331,159.37

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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.