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Finding the Third Proportional to 137,777.25 and 210,756.75

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Solution

The third proportional to 137,777.25 and 210,756.75 is: 322,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,777.25 : 210,756.75 = 210,756.75 : x
  2. Step 2: Convert to fraction form
    137,777.25/210,756.75 = 210,756.75/x
  3. Step 3: Cross multiply
    137,777.25x = 210,756.75 × 210,756.75
  4. Step 4: Simplify right side
    137,777.25x = 44,418,407,670.56
  5. Step 5: Solve for x
    x = 44,418,407,670.56/137,777.25
  6. Step 6: Final answer
    x = 322,392.90

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.