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Finding the Third Proportional to 215,521 and 471,170

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Solution

The third proportional to 215,521 and 471,170 is: 1,030,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,521 : 471,170 = 471,170 : x
  2. Step 2: Convert to fraction form
    215,521/471,170 = 471,170/x
  3. Step 3: Cross multiply
    215,521x = 471,170 × 471,170
  4. Step 4: Simplify right side
    215,521x = 222,001,168,900
  5. Step 5: Solve for x
    x = 222,001,168,900/215,521
  6. Step 6: Final answer
    x = 1,030,067.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.