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Finding the Third Proportional to 121,621.50 and 184,315.50

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Solution

The third proportional to 121,621.50 and 184,315.50 is: 279,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,621.50 : 184,315.50 = 184,315.50 : x
  2. Step 2: Convert to fraction form
    121,621.50/184,315.50 = 184,315.50/x
  3. Step 3: Cross multiply
    121,621.50x = 184,315.50 × 184,315.50
  4. Step 4: Simplify right side
    121,621.50x = 33,972,203,540.25
  5. Step 5: Solve for x
    x = 33,972,203,540.25/121,621.50
  6. Step 6: Final answer
    x = 279,327.29

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.