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Finding the Third Proportional to 250,021 and 397,176

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Solution

The third proportional to 250,021 and 397,176 is: 630,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,021 : 397,176 = 397,176 : x
  2. Step 2: Convert to fraction form
    250,021/397,176 = 397,176/x
  3. Step 3: Cross multiply
    250,021x = 397,176 × 397,176
  4. Step 4: Simplify right side
    250,021x = 157,748,774,976
  5. Step 5: Solve for x
    x = 157,748,774,976/250,021
  6. Step 6: Final answer
    x = 630,942.10

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.