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Finding the Third Proportional to 66,774 and 155,270

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Solution

The third proportional to 66,774 and 155,270 is: 361,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,774 : 155,270 = 155,270 : x
  2. Step 2: Convert to fraction form
    66,774/155,270 = 155,270/x
  3. Step 3: Cross multiply
    66,774x = 155,270 × 155,270
  4. Step 4: Simplify right side
    66,774x = 24,108,772,900
  5. Step 5: Solve for x
    x = 24,108,772,900/66,774
  6. Step 6: Final answer
    x = 361,050.30

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.