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Finding the Third Proportional to 30,022 and 65,172

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Solution

The third proportional to 30,022 and 65,172 is: 141,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,022 : 65,172 = 65,172 : x
  2. Step 2: Convert to fraction form
    30,022/65,172 = 65,172/x
  3. Step 3: Cross multiply
    30,022x = 65,172 × 65,172
  4. Step 4: Simplify right side
    30,022x = 4,247,389,584
  5. Step 5: Solve for x
    x = 4,247,389,584/30,022
  6. Step 6: Final answer
    x = 141,475.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.