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Finding the Third Proportional to 129,465.56 and 276,921

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Solution

The third proportional to 129,465.56 and 276,921 is: 592,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,465.56 : 276,921 = 276,921 : x
  2. Step 2: Convert to fraction form
    129,465.56/276,921 = 276,921/x
  3. Step 3: Cross multiply
    129,465.56x = 276,921 × 276,921
  4. Step 4: Simplify right side
    129,465.56x = 76,685,240,241
  5. Step 5: Solve for x
    x = 76,685,240,241/129,465.56
  6. Step 6: Final answer
    x = 592,321.53

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.