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Finding the Third Proportional to 221,700 and 484,872

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Solution

The third proportional to 221,700 and 484,872 is: 1,060,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,700 : 484,872 = 484,872 : x
  2. Step 2: Convert to fraction form
    221,700/484,872 = 484,872/x
  3. Step 3: Cross multiply
    221,700x = 484,872 × 484,872
  4. Step 4: Simplify right side
    221,700x = 235,100,856,384
  5. Step 5: Solve for x
    x = 235,100,856,384/221,700
  6. Step 6: Final answer
    x = 1,060,445.90

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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.