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Finding the Third Proportional to 135,765 and 210,008

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Solution

The third proportional to 135,765 and 210,008 is: 324,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,765 : 210,008 = 210,008 : x
  2. Step 2: Convert to fraction form
    135,765/210,008 = 210,008/x
  3. Step 3: Cross multiply
    135,765x = 210,008 × 210,008
  4. Step 4: Simplify right side
    135,765x = 44,103,360,064
  5. Step 5: Solve for x
    x = 44,103,360,064/135,765
  6. Step 6: Final answer
    x = 324,850.74

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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.