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Finding the Third Proportional to 55,272.38 and 129,924

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Solution

The third proportional to 55,272.38 and 129,924 is: 305,401.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,272.38 : 129,924 = 129,924 : x
  2. Step 2: Convert to fraction form
    55,272.38/129,924 = 129,924/x
  3. Step 3: Cross multiply
    55,272.38x = 129,924 × 129,924
  4. Step 4: Simplify right side
    55,272.38x = 16,880,245,776
  5. Step 5: Solve for x
    x = 16,880,245,776/55,272.38
  6. Step 6: Final answer
    x = 305,401.13

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.