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Finding the Third Proportional to 171,328 and 251,143

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Solution

The third proportional to 171,328 and 251,143 is: 368,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,328 : 251,143 = 251,143 : x
  2. Step 2: Convert to fraction form
    171,328/251,143 = 251,143/x
  3. Step 3: Cross multiply
    171,328x = 251,143 × 251,143
  4. Step 4: Simplify right side
    171,328x = 63,072,806,449
  5. Step 5: Solve for x
    x = 63,072,806,449/171,328
  6. Step 6: Final answer
    x = 368,140.68

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.