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Finding the Third Proportional to 66,839 and 148,623

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Solution

The third proportional to 66,839 and 148,623 is: 330,477.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,839 : 148,623 = 148,623 : x
  2. Step 2: Convert to fraction form
    66,839/148,623 = 148,623/x
  3. Step 3: Cross multiply
    66,839x = 148,623 × 148,623
  4. Step 4: Simplify right side
    66,839x = 22,088,796,129
  5. Step 5: Solve for x
    x = 22,088,796,129/66,839
  6. Step 6: Final answer
    x = 330,477.66

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.