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Finding the Third Proportional to 117,848 and 218,461

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Solution

The third proportional to 117,848 and 218,461 is: 404,972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,848 : 218,461 = 218,461 : x
  2. Step 2: Convert to fraction form
    117,848/218,461 = 218,461/x
  3. Step 3: Cross multiply
    117,848x = 218,461 × 218,461
  4. Step 4: Simplify right side
    117,848x = 47,725,208,521
  5. Step 5: Solve for x
    x = 47,725,208,521/117,848
  6. Step 6: Final answer
    x = 404,972.58

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.