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Finding the Third Proportional to 122,816 and 180,200

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Solution

The third proportional to 122,816 and 180,200 is: 264,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,816 : 180,200 = 180,200 : x
  2. Step 2: Convert to fraction form
    122,816/180,200 = 180,200/x
  3. Step 3: Cross multiply
    122,816x = 180,200 × 180,200
  4. Step 4: Simplify right side
    122,816x = 32,472,040,000
  5. Step 5: Solve for x
    x = 32,472,040,000/122,816
  6. Step 6: Final answer
    x = 264,395.84

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.