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Finding the Third Proportional to 156,974 and 223,621

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Solution

The third proportional to 156,974 and 223,621 is: 318,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974 : 223,621 = 223,621 : x
  2. Step 2: Convert to fraction form
    156,974/223,621 = 223,621/x
  3. Step 3: Cross multiply
    156,974x = 223,621 × 223,621
  4. Step 4: Simplify right side
    156,974x = 50,006,351,641
  5. Step 5: Solve for x
    x = 50,006,351,641/156,974
  6. Step 6: Final answer
    x = 318,564.55

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.