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Finding the Third Proportional to 223,373 and 486,909

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Solution

The third proportional to 223,373 and 486,909 is: 1,061,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,373 : 486,909 = 486,909 : x
  2. Step 2: Convert to fraction form
    223,373/486,909 = 486,909/x
  3. Step 3: Cross multiply
    223,373x = 486,909 × 486,909
  4. Step 4: Simplify right side
    223,373x = 237,080,374,281
  5. Step 5: Solve for x
    x = 237,080,374,281/223,373
  6. Step 6: Final answer
    x = 1,061,365.40

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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.