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Finding the Third Proportional to 127,640 and 281,362

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Solution

The third proportional to 127,640 and 281,362 is: 620,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,640 : 281,362 = 281,362 : x
  2. Step 2: Convert to fraction form
    127,640/281,362 = 281,362/x
  3. Step 3: Cross multiply
    127,640x = 281,362 × 281,362
  4. Step 4: Simplify right side
    127,640x = 79,164,575,044
  5. Step 5: Solve for x
    x = 79,164,575,044/127,640
  6. Step 6: Final answer
    x = 620,217.60

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.