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Finding the Third Proportional to 128,088 and 204,624

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Solution

The third proportional to 128,088 and 204,624 is: 326,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,088 : 204,624 = 204,624 : x
  2. Step 2: Convert to fraction form
    128,088/204,624 = 204,624/x
  3. Step 3: Cross multiply
    128,088x = 204,624 × 204,624
  4. Step 4: Simplify right side
    128,088x = 41,870,981,376
  5. Step 5: Solve for x
    x = 41,870,981,376/128,088
  6. Step 6: Final answer
    x = 326,892.30

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.