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Finding the Third Proportional to 91,330 and 143,305

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Solution

The third proportional to 91,330 and 143,305 is: 224,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,330 : 143,305 = 143,305 : x
  2. Step 2: Convert to fraction form
    91,330/143,305 = 143,305/x
  3. Step 3: Cross multiply
    91,330x = 143,305 × 143,305
  4. Step 4: Simplify right side
    91,330x = 20,536,323,025
  5. Step 5: Solve for x
    x = 20,536,323,025/91,330
  6. Step 6: Final answer
    x = 224,858.46

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.