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Finding the Third Proportional to 231,492 and 347,855

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Solution

The third proportional to 231,492 and 347,855 is: 522,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,492 : 347,855 = 347,855 : x
  2. Step 2: Convert to fraction form
    231,492/347,855 = 347,855/x
  3. Step 3: Cross multiply
    231,492x = 347,855 × 347,855
  4. Step 4: Simplify right side
    231,492x = 121,003,101,025
  5. Step 5: Solve for x
    x = 121,003,101,025/231,492
  6. Step 6: Final answer
    x = 522,709.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.