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Finding the Third Proportional to 103,639 and 223,818

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Solution

The third proportional to 103,639 and 223,818 is: 483,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639 : 223,818 = 223,818 : x
  2. Step 2: Convert to fraction form
    103,639/223,818 = 223,818/x
  3. Step 3: Cross multiply
    103,639x = 223,818 × 223,818
  4. Step 4: Simplify right side
    103,639x = 50,094,497,124
  5. Step 5: Solve for x
    x = 50,094,497,124/103,639
  6. Step 6: Final answer
    x = 483,355.66

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.