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Finding the Third Proportional to 70,623 and 155,188

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Solution

The third proportional to 70,623 and 155,188 is: 341,012.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,623 : 155,188 = 155,188 : x
  2. Step 2: Convert to fraction form
    70,623/155,188 = 155,188/x
  3. Step 3: Cross multiply
    70,623x = 155,188 × 155,188
  4. Step 4: Simplify right side
    70,623x = 24,083,315,344
  5. Step 5: Solve for x
    x = 24,083,315,344/70,623
  6. Step 6: Final answer
    x = 341,012.35

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.