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Finding the Third Proportional to 171,815 and 252,570

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Solution

The third proportional to 171,815 and 252,570 is: 371,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,815 : 252,570 = 252,570 : x
  2. Step 2: Convert to fraction form
    171,815/252,570 = 252,570/x
  3. Step 3: Cross multiply
    171,815x = 252,570 × 252,570
  4. Step 4: Simplify right side
    171,815x = 63,791,604,900
  5. Step 5: Solve for x
    x = 63,791,604,900/171,815
  6. Step 6: Final answer
    x = 371,280.77

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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.