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Finding the Third Proportional to 79,223 and 172,108

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Solution

The third proportional to 79,223 and 172,108 is: 373,896.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,223 : 172,108 = 172,108 : x
  2. Step 2: Convert to fraction form
    79,223/172,108 = 172,108/x
  3. Step 3: Cross multiply
    79,223x = 172,108 × 172,108
  4. Step 4: Simplify right side
    79,223x = 29,621,163,664
  5. Step 5: Solve for x
    x = 29,621,163,664/79,223
  6. Step 6: Final answer
    x = 373,896.01

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.