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Finding the Third Proportional to 125,265 and 220,771.50

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Solution

The third proportional to 125,265 and 220,771.50 is: 389,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,265 : 220,771.50 = 220,771.50 : x
  2. Step 2: Convert to fraction form
    125,265/220,771.50 = 220,771.50/x
  3. Step 3: Cross multiply
    125,265x = 220,771.50 × 220,771.50
  4. Step 4: Simplify right side
    125,265x = 48,740,055,212.25
  5. Step 5: Solve for x
    x = 48,740,055,212.25/125,265
  6. Step 6: Final answer
    x = 389,095.56

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.