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Finding the Third Proportional to 77,772.75 and 160,381.50

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Solution

The third proportional to 77,772.75 and 160,381.50 is: 330,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,772.75 : 160,381.50 = 160,381.50 : x
  2. Step 2: Convert to fraction form
    77,772.75/160,381.50 = 160,381.50/x
  3. Step 3: Cross multiply
    77,772.75x = 160,381.50 × 160,381.50
  4. Step 4: Simplify right side
    77,772.75x = 25,722,225,542.25
  5. Step 5: Solve for x
    x = 25,722,225,542.25/77,772.75
  6. Step 6: Final answer
    x = 330,735.71

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.