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Finding the Third Proportional to 144,839 and 212,074

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Solution

The third proportional to 144,839 and 212,074 is: 310,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,839 : 212,074 = 212,074 : x
  2. Step 2: Convert to fraction form
    144,839/212,074 = 212,074/x
  3. Step 3: Cross multiply
    144,839x = 212,074 × 212,074
  4. Step 4: Simplify right side
    144,839x = 44,975,381,476
  5. Step 5: Solve for x
    x = 44,975,381,476/144,839
  6. Step 6: Final answer
    x = 310,519.83

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.