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Finding the Third Proportional to 227,890 and 353,781

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Solution

The third proportional to 227,890 and 353,781 is: 549,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,890 : 353,781 = 353,781 : x
  2. Step 2: Convert to fraction form
    227,890/353,781 = 353,781/x
  3. Step 3: Cross multiply
    227,890x = 353,781 × 353,781
  4. Step 4: Simplify right side
    227,890x = 125,160,995,961
  5. Step 5: Solve for x
    x = 125,160,995,961/227,890
  6. Step 6: Final answer
    x = 549,216.71

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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.