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Finding the Third Proportional to 131,242.50 and 203,607

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Solution

The third proportional to 131,242.50 and 203,607 is: 315,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,242.50 : 203,607 = 203,607 : x
  2. Step 2: Convert to fraction form
    131,242.50/203,607 = 203,607/x
  3. Step 3: Cross multiply
    131,242.50x = 203,607 × 203,607
  4. Step 4: Simplify right side
    131,242.50x = 41,455,810,449
  5. Step 5: Solve for x
    x = 41,455,810,449/131,242.50
  6. Step 6: Final answer
    x = 315,871.84

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.