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Finding the Third Proportional to 151,566 and 210,739

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Solution

The third proportional to 151,566 and 210,739 is: 293,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,566 : 210,739 = 210,739 : x
  2. Step 2: Convert to fraction form
    151,566/210,739 = 210,739/x
  3. Step 3: Cross multiply
    151,566x = 210,739 × 210,739
  4. Step 4: Simplify right side
    151,566x = 44,410,926,121
  5. Step 5: Solve for x
    x = 44,410,926,121/151,566
  6. Step 6: Final answer
    x = 293,013.78

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.