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Finding the Third Proportional to 201,145 and 277,079

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Solution

The third proportional to 201,145 and 277,079 is: 381,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,145 : 277,079 = 277,079 : x
  2. Step 2: Convert to fraction form
    201,145/277,079 = 277,079/x
  3. Step 3: Cross multiply
    201,145x = 277,079 × 277,079
  4. Step 4: Simplify right side
    201,145x = 76,772,772,241
  5. Step 5: Solve for x
    x = 76,772,772,241/201,145
  6. Step 6: Final answer
    x = 381,678.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.