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Finding the Third Proportional to 172,620.75 and 369,228

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Solution

The third proportional to 172,620.75 and 369,228 is: 789,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,620.75 : 369,228 = 369,228 : x
  2. Step 2: Convert to fraction form
    172,620.75/369,228 = 369,228/x
  3. Step 3: Cross multiply
    172,620.75x = 369,228 × 369,228
  4. Step 4: Simplify right side
    172,620.75x = 136,329,315,984
  5. Step 5: Solve for x
    x = 136,329,315,984/172,620.75
  6. Step 6: Final answer
    x = 789,762.04

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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.