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Finding the Third Proportional to 221,669 and 470,959

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Solution

The third proportional to 221,669 and 470,959 is: 1,000,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,669 : 470,959 = 470,959 : x
  2. Step 2: Convert to fraction form
    221,669/470,959 = 470,959/x
  3. Step 3: Cross multiply
    221,669x = 470,959 × 470,959
  4. Step 4: Simplify right side
    221,669x = 221,802,379,681
  5. Step 5: Solve for x
    x = 221,802,379,681/221,669
  6. Step 6: Final answer
    x = 1,000,601.71

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.