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Finding the Third Proportional to 171,828 and 252,090

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Solution

The third proportional to 171,828 and 252,090 is: 369,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,828 : 252,090 = 252,090 : x
  2. Step 2: Convert to fraction form
    171,828/252,090 = 252,090/x
  3. Step 3: Cross multiply
    171,828x = 252,090 × 252,090
  4. Step 4: Simplify right side
    171,828x = 63,549,368,100
  5. Step 5: Solve for x
    x = 63,549,368,100/171,828
  6. Step 6: Final answer
    x = 369,842.91

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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.