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Finding the Third Proportional to 69,624 and 142,935

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Solution

The third proportional to 69,624 and 142,935 is: 293,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,624 : 142,935 = 142,935 : x
  2. Step 2: Convert to fraction form
    69,624/142,935 = 142,935/x
  3. Step 3: Cross multiply
    69,624x = 142,935 × 142,935
  4. Step 4: Simplify right side
    69,624x = 20,430,414,225
  5. Step 5: Solve for x
    x = 20,430,414,225/69,624
  6. Step 6: Final answer
    x = 293,439.25

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.