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Finding the Third Proportional to 201,920 and 440,516

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Solution

The third proportional to 201,920 and 440,516 is: 961,045.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,920 : 440,516 = 440,516 : x
  2. Step 2: Convert to fraction form
    201,920/440,516 = 440,516/x
  3. Step 3: Cross multiply
    201,920x = 440,516 × 440,516
  4. Step 4: Simplify right side
    201,920x = 194,054,346,256
  5. Step 5: Solve for x
    x = 194,054,346,256/201,920
  6. Step 6: Final answer
    x = 961,045.69

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.