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Finding the Third Proportional to 66,374 and 156,629

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Solution

The third proportional to 66,374 and 156,629 is: 369,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,374 : 156,629 = 156,629 : x
  2. Step 2: Convert to fraction form
    66,374/156,629 = 156,629/x
  3. Step 3: Cross multiply
    66,374x = 156,629 × 156,629
  4. Step 4: Simplify right side
    66,374x = 24,532,643,641
  5. Step 5: Solve for x
    x = 24,532,643,641/66,374
  6. Step 6: Final answer
    x = 369,612.25

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.