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Finding the Third Proportional to 77,339.50 and 169,619

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Solution

The third proportional to 77,339.50 and 169,619 is: 372,004.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339.50 : 169,619 = 169,619 : x
  2. Step 2: Convert to fraction form
    77,339.50/169,619 = 169,619/x
  3. Step 3: Cross multiply
    77,339.50x = 169,619 × 169,619
  4. Step 4: Simplify right side
    77,339.50x = 28,770,605,161
  5. Step 5: Solve for x
    x = 28,770,605,161/77,339.50
  6. Step 6: Final answer
    x = 372,004.02

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.