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Finding the Third Proportional to 102,172 and 216,628

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Solution

The third proportional to 102,172 and 216,628 is: 459,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,172 : 216,628 = 216,628 : x
  2. Step 2: Convert to fraction form
    102,172/216,628 = 216,628/x
  3. Step 3: Cross multiply
    102,172x = 216,628 × 216,628
  4. Step 4: Simplify right side
    102,172x = 46,927,690,384
  5. Step 5: Solve for x
    x = 46,927,690,384/102,172
  6. Step 6: Final answer
    x = 459,300.89

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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.