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Finding the Third Proportional to 118,196 and 172,239

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Solution

The third proportional to 118,196 and 172,239 is: 250,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,196 : 172,239 = 172,239 : x
  2. Step 2: Convert to fraction form
    118,196/172,239 = 172,239/x
  3. Step 3: Cross multiply
    118,196x = 172,239 × 172,239
  4. Step 4: Simplify right side
    118,196x = 29,666,273,121
  5. Step 5: Solve for x
    x = 29,666,273,121/118,196
  6. Step 6: Final answer
    x = 250,992.19

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.