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Finding the Third Proportional to 136,748 and 206,948

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Solution

The third proportional to 136,748 and 206,948 is: 313,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,748 : 206,948 = 206,948 : x
  2. Step 2: Convert to fraction form
    136,748/206,948 = 206,948/x
  3. Step 3: Cross multiply
    136,748x = 206,948 × 206,948
  4. Step 4: Simplify right side
    136,748x = 42,827,474,704
  5. Step 5: Solve for x
    x = 42,827,474,704/136,748
  6. Step 6: Final answer
    x = 313,185.38

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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.