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Finding the Third Proportional to 66,376 and 143,317

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Solution

The third proportional to 66,376 and 143,317 is: 309,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376 : 143,317 = 143,317 : x
  2. Step 2: Convert to fraction form
    66,376/143,317 = 143,317/x
  3. Step 3: Cross multiply
    66,376x = 143,317 × 143,317
  4. Step 4: Simplify right side
    66,376x = 20,539,762,489
  5. Step 5: Solve for x
    x = 20,539,762,489/66,376
  6. Step 6: Final answer
    x = 309,445.62

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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.