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Finding the Third Proportional to 129,459 and 174,907

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Solution

The third proportional to 129,459 and 174,907 is: 236,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,459 : 174,907 = 174,907 : x
  2. Step 2: Convert to fraction form
    129,459/174,907 = 174,907/x
  3. Step 3: Cross multiply
    129,459x = 174,907 × 174,907
  4. Step 4: Simplify right side
    129,459x = 30,592,458,649
  5. Step 5: Solve for x
    x = 30,592,458,649/129,459
  6. Step 6: Final answer
    x = 236,310.02

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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.