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Finding the Third Proportional to 66,367.50 and 145,857

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Solution

The third proportional to 66,367.50 and 145,857 is: 320,552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,367.50 : 145,857 = 145,857 : x
  2. Step 2: Convert to fraction form
    66,367.50/145,857 = 145,857/x
  3. Step 3: Cross multiply
    66,367.50x = 145,857 × 145,857
  4. Step 4: Simplify right side
    66,367.50x = 21,274,264,449
  5. Step 5: Solve for x
    x = 21,274,264,449/66,367.50
  6. Step 6: Final answer
    x = 320,552.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.