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Finding the Third Proportional to 199,803 and 428,982

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Solution

The third proportional to 199,803 and 428,982 is: 921,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,803 : 428,982 = 428,982 : x
  2. Step 2: Convert to fraction form
    199,803/428,982 = 428,982/x
  3. Step 3: Cross multiply
    199,803x = 428,982 × 428,982
  4. Step 4: Simplify right side
    199,803x = 184,025,556,324
  5. Step 5: Solve for x
    x = 184,025,556,324/199,803
  6. Step 6: Final answer
    x = 921,035.00

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.