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Finding the Third Proportional to 207,720.75 and 339,158.25

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Solution

The third proportional to 207,720.75 and 339,158.25 is: 553,764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,720.75 : 339,158.25 = 339,158.25 : x
  2. Step 2: Convert to fraction form
    207,720.75/339,158.25 = 339,158.25/x
  3. Step 3: Cross multiply
    207,720.75x = 339,158.25 × 339,158.25
  4. Step 4: Simplify right side
    207,720.75x = 115,028,318,543.06
  5. Step 5: Solve for x
    x = 115,028,318,543.06/207,720.75
  6. Step 6: Final answer
    x = 553,764.22

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.