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Finding the Third Proportional to 66,524 and 143,600

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Solution

The third proportional to 66,524 and 143,600 is: 309,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,524 : 143,600 = 143,600 : x
  2. Step 2: Convert to fraction form
    66,524/143,600 = 143,600/x
  3. Step 3: Cross multiply
    66,524x = 143,600 × 143,600
  4. Step 4: Simplify right side
    66,524x = 20,620,960,000
  5. Step 5: Solve for x
    x = 20,620,960,000/66,524
  6. Step 6: Final answer
    x = 309,977.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.