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Finding the Third Proportional to 257,096 and 553,660

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Solution

The third proportional to 257,096 and 553,660 is: 1,192,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,096 : 553,660 = 553,660 : x
  2. Step 2: Convert to fraction form
    257,096/553,660 = 553,660/x
  3. Step 3: Cross multiply
    257,096x = 553,660 × 553,660
  4. Step 4: Simplify right side
    257,096x = 306,539,395,600
  5. Step 5: Solve for x
    x = 306,539,395,600/257,096
  6. Step 6: Final answer
    x = 1,192,314.92

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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.