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Finding the Third Proportional to 19,153 and 40,619

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Solution

The third proportional to 19,153 and 40,619 is: 86,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,153 : 40,619 = 40,619 : x
  2. Step 2: Convert to fraction form
    19,153/40,619 = 40,619/x
  3. Step 3: Cross multiply
    19,153x = 40,619 × 40,619
  4. Step 4: Simplify right side
    19,153x = 1,649,903,161
  5. Step 5: Solve for x
    x = 1,649,903,161/19,153
  6. Step 6: Final answer
    x = 86,143.33

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.