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Finding the Third Proportional to 262,515 and 396,175.50

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Solution

The third proportional to 262,515 and 396,175.50 is: 597,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,515 : 396,175.50 = 396,175.50 : x
  2. Step 2: Convert to fraction form
    262,515/396,175.50 = 396,175.50/x
  3. Step 3: Cross multiply
    262,515x = 396,175.50 × 396,175.50
  4. Step 4: Simplify right side
    262,515x = 156,955,026,800.25
  5. Step 5: Solve for x
    x = 156,955,026,800.25/262,515
  6. Step 6: Final answer
    x = 597,889.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.