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Finding the Third Proportional to 66,975 and 147,579

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Solution

The third proportional to 66,975 and 147,579 is: 325,189.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,975 : 147,579 = 147,579 : x
  2. Step 2: Convert to fraction form
    66,975/147,579 = 147,579/x
  3. Step 3: Cross multiply
    66,975x = 147,579 × 147,579
  4. Step 4: Simplify right side
    66,975x = 21,779,561,241
  5. Step 5: Solve for x
    x = 21,779,561,241/66,975
  6. Step 6: Final answer
    x = 325,189.42

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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.