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Finding the Third Proportional to 154,008 and 207,636

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Solution

The third proportional to 154,008 and 207,636 is: 279,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,008 : 207,636 = 207,636 : x
  2. Step 2: Convert to fraction form
    154,008/207,636 = 207,636/x
  3. Step 3: Cross multiply
    154,008x = 207,636 × 207,636
  4. Step 4: Simplify right side
    154,008x = 43,112,708,496
  5. Step 5: Solve for x
    x = 43,112,708,496/154,008
  6. Step 6: Final answer
    x = 279,938.11

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.