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Finding the Third Proportional to 135,704.50 and 210,888

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Solution

The third proportional to 135,704.50 and 210,888 is: 327,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,704.50 : 210,888 = 210,888 : x
  2. Step 2: Convert to fraction form
    135,704.50/210,888 = 210,888/x
  3. Step 3: Cross multiply
    135,704.50x = 210,888 × 210,888
  4. Step 4: Simplify right side
    135,704.50x = 44,473,748,544
  5. Step 5: Solve for x
    x = 44,473,748,544/135,704.50
  6. Step 6: Final answer
    x = 327,724.94

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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.