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Finding the Third Proportional to 71,460 and 153,873

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Solution

The third proportional to 71,460 and 153,873 is: 331,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,460 : 153,873 = 153,873 : x
  2. Step 2: Convert to fraction form
    71,460/153,873 = 153,873/x
  3. Step 3: Cross multiply
    71,460x = 153,873 × 153,873
  4. Step 4: Simplify right side
    71,460x = 23,676,900,129
  5. Step 5: Solve for x
    x = 23,676,900,129/71,460
  6. Step 6: Final answer
    x = 331,330.82

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.