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Finding the Third Proportional to 68,391 and 146,514

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Solution

The third proportional to 68,391 and 146,514 is: 313,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,391 : 146,514 = 146,514 : x
  2. Step 2: Convert to fraction form
    68,391/146,514 = 146,514/x
  3. Step 3: Cross multiply
    68,391x = 146,514 × 146,514
  4. Step 4: Simplify right side
    68,391x = 21,466,352,196
  5. Step 5: Solve for x
    x = 21,466,352,196/68,391
  6. Step 6: Final answer
    x = 313,876.86

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.