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Finding the Third Proportional to 156,799 and 343,621

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Solution

The third proportional to 156,799 and 343,621 is: 753,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799 : 343,621 = 343,621 : x
  2. Step 2: Convert to fraction form
    156,799/343,621 = 343,621/x
  3. Step 3: Cross multiply
    156,799x = 343,621 × 343,621
  4. Step 4: Simplify right side
    156,799x = 118,075,391,641
  5. Step 5: Solve for x
    x = 118,075,391,641/156,799
  6. Step 6: Final answer
    x = 753,036.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.