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Finding the Third Proportional to 356,130 and 550,694

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Solution

The third proportional to 356,130 and 550,694 is: 851,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,130 : 550,694 = 550,694 : x
  2. Step 2: Convert to fraction form
    356,130/550,694 = 550,694/x
  3. Step 3: Cross multiply
    356,130x = 550,694 × 550,694
  4. Step 4: Simplify right side
    356,130x = 303,263,881,636
  5. Step 5: Solve for x
    x = 303,263,881,636/356,130
  6. Step 6: Final answer
    x = 851,553.88

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.