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Finding the Third Proportional to 201,163 and 281,910

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Solution

The third proportional to 201,163 and 281,910 is: 395,068.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,163 : 281,910 = 281,910 : x
  2. Step 2: Convert to fraction form
    201,163/281,910 = 281,910/x
  3. Step 3: Cross multiply
    201,163x = 281,910 × 281,910
  4. Step 4: Simplify right side
    201,163x = 79,473,248,100
  5. Step 5: Solve for x
    x = 79,473,248,100/201,163
  6. Step 6: Final answer
    x = 395,068.91

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.