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Finding the Third Proportional to 212,021.50 and 327,874.50

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Solution

The third proportional to 212,021.50 and 327,874.50 is: 507,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,021.50 : 327,874.50 = 327,874.50 : x
  2. Step 2: Convert to fraction form
    212,021.50/327,874.50 = 327,874.50/x
  3. Step 3: Cross multiply
    212,021.50x = 327,874.50 × 327,874.50
  4. Step 4: Simplify right side
    212,021.50x = 107,501,687,750.25
  5. Step 5: Solve for x
    x = 107,501,687,750.25/212,021.50
  6. Step 6: Final answer
    x = 507,032.01

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.