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Finding the Third Proportional to 155,628 and 339,525

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Solution

The third proportional to 155,628 and 339,525 is: 740,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,628 : 339,525 = 339,525 : x
  2. Step 2: Convert to fraction form
    155,628/339,525 = 339,525/x
  3. Step 3: Cross multiply
    155,628x = 339,525 × 339,525
  4. Step 4: Simplify right side
    155,628x = 115,277,225,625
  5. Step 5: Solve for x
    x = 115,277,225,625/155,628
  6. Step 6: Final answer
    x = 740,722.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.