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Finding the Third Proportional to 115,464 and 172,732

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Solution

The third proportional to 115,464 and 172,732 is: 258,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,464 : 172,732 = 172,732 : x
  2. Step 2: Convert to fraction form
    115,464/172,732 = 172,732/x
  3. Step 3: Cross multiply
    115,464x = 172,732 × 172,732
  4. Step 4: Simplify right side
    115,464x = 29,836,343,824
  5. Step 5: Solve for x
    x = 29,836,343,824/115,464
  6. Step 6: Final answer
    x = 258,403.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.