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Finding the Third Proportional to 102,369 and 221,504

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Solution

The third proportional to 102,369 and 221,504 is: 479,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,369 : 221,504 = 221,504 : x
  2. Step 2: Convert to fraction form
    102,369/221,504 = 221,504/x
  3. Step 3: Cross multiply
    102,369x = 221,504 × 221,504
  4. Step 4: Simplify right side
    102,369x = 49,064,022,016
  5. Step 5: Solve for x
    x = 49,064,022,016/102,369
  6. Step 6: Final answer
    x = 479,285.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.