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Finding the Third Proportional to 102,913 and 223,867

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Solution

The third proportional to 102,913 and 223,867 is: 486,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,913 : 223,867 = 223,867 : x
  2. Step 2: Convert to fraction form
    102,913/223,867 = 223,867/x
  3. Step 3: Cross multiply
    102,913x = 223,867 × 223,867
  4. Step 4: Simplify right side
    102,913x = 50,116,433,689
  5. Step 5: Solve for x
    x = 50,116,433,689/102,913
  6. Step 6: Final answer
    x = 486,978.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.