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Finding the Third Proportional to 71,370 and 155,450

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Solution

The third proportional to 71,370 and 155,450 is: 338,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,370 : 155,450 = 155,450 : x
  2. Step 2: Convert to fraction form
    71,370/155,450 = 155,450/x
  3. Step 3: Cross multiply
    71,370x = 155,450 × 155,450
  4. Step 4: Simplify right side
    71,370x = 24,164,702,500
  5. Step 5: Solve for x
    x = 24,164,702,500/71,370
  6. Step 6: Final answer
    x = 338,583.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.