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Finding the Third Proportional to 91,810.50 and 197,013

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Solution

The third proportional to 91,810.50 and 197,013 is: 422,763.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,810.50 : 197,013 = 197,013 : x
  2. Step 2: Convert to fraction form
    91,810.50/197,013 = 197,013/x
  3. Step 3: Cross multiply
    91,810.50x = 197,013 × 197,013
  4. Step 4: Simplify right side
    91,810.50x = 38,814,122,169
  5. Step 5: Solve for x
    x = 38,814,122,169/91,810.50
  6. Step 6: Final answer
    x = 422,763.43

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.