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Finding the Third Proportional to 221,316 and 474,189

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Solution

The third proportional to 221,316 and 474,189 is: 1,015,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,316 : 474,189 = 474,189 : x
  2. Step 2: Convert to fraction form
    221,316/474,189 = 474,189/x
  3. Step 3: Cross multiply
    221,316x = 474,189 × 474,189
  4. Step 4: Simplify right side
    221,316x = 224,855,207,721
  5. Step 5: Solve for x
    x = 224,855,207,721/221,316
  6. Step 6: Final answer
    x = 1,015,991.65

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.