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Finding the Third Proportional to 68,730 and 146,460

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Solution

The third proportional to 68,730 and 146,460 is: 312,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,730 : 146,460 = 146,460 : x
  2. Step 2: Convert to fraction form
    68,730/146,460 = 146,460/x
  3. Step 3: Cross multiply
    68,730x = 146,460 × 146,460
  4. Step 4: Simplify right side
    68,730x = 21,450,531,600
  5. Step 5: Solve for x
    x = 21,450,531,600/68,730
  6. Step 6: Final answer
    x = 312,098.52

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.