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Finding the Third Proportional to 253,197 and 388,251

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Solution

The third proportional to 253,197 and 388,251 is: 595,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,197 : 388,251 = 388,251 : x
  2. Step 2: Convert to fraction form
    253,197/388,251 = 388,251/x
  3. Step 3: Cross multiply
    253,197x = 388,251 × 388,251
  4. Step 4: Simplify right side
    253,197x = 150,738,839,001
  5. Step 5: Solve for x
    x = 150,738,839,001/253,197
  6. Step 6: Final answer
    x = 595,342.12

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.