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Finding the Third Proportional to 4,230.56 and 8,922.66

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Solution

The third proportional to 4,230.56 and 8,922.66 is: 18,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230.56 : 8,922.66 = 8,922.66 : x
  2. Step 2: Convert to fraction form
    4,230.56/8,922.66 = 8,922.66/x
  3. Step 3: Cross multiply
    4,230.56x = 8,922.66 × 8,922.66
  4. Step 4: Simplify right side
    4,230.56x = 79,613,794.56
  5. Step 5: Solve for x
    x = 79,613,794.56/4,230.56
  6. Step 6: Final answer
    x = 18,818.73

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.