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Finding the Third Proportional to 122,053 and 257,228

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Solution

The third proportional to 122,053 and 257,228 is: 542,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,053 : 257,228 = 257,228 : x
  2. Step 2: Convert to fraction form
    122,053/257,228 = 257,228/x
  3. Step 3: Cross multiply
    122,053x = 257,228 × 257,228
  4. Step 4: Simplify right side
    122,053x = 66,166,243,984
  5. Step 5: Solve for x
    x = 66,166,243,984/122,053
  6. Step 6: Final answer
    x = 542,110.76

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.