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Finding the Third Proportional to 220,163 and 260,015

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Solution

The third proportional to 220,163 and 260,015 is: 307,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,163 : 260,015 = 260,015 : x
  2. Step 2: Convert to fraction form
    220,163/260,015 = 260,015/x
  3. Step 3: Cross multiply
    220,163x = 260,015 × 260,015
  4. Step 4: Simplify right side
    220,163x = 67,607,800,225
  5. Step 5: Solve for x
    x = 67,607,800,225/220,163
  6. Step 6: Final answer
    x = 307,080.66

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.