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Finding the Third Proportional to 157,311 and 342,267

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Solution

The third proportional to 157,311 and 342,267 is: 744,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,311 : 342,267 = 342,267 : x
  2. Step 2: Convert to fraction form
    157,311/342,267 = 342,267/x
  3. Step 3: Cross multiply
    157,311x = 342,267 × 342,267
  4. Step 4: Simplify right side
    157,311x = 117,146,699,289
  5. Step 5: Solve for x
    x = 117,146,699,289/157,311
  6. Step 6: Final answer
    x = 744,682.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.