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Finding the Third Proportional to 165,080 and 257,502

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Solution

The third proportional to 165,080 and 257,502 is: 401,667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,080 : 257,502 = 257,502 : x
  2. Step 2: Convert to fraction form
    165,080/257,502 = 257,502/x
  3. Step 3: Cross multiply
    165,080x = 257,502 × 257,502
  4. Step 4: Simplify right side
    165,080x = 66,307,280,004
  5. Step 5: Solve for x
    x = 66,307,280,004/165,080
  6. Step 6: Final answer
    x = 401,667.56

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.