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Finding the Third Proportional to 189,226 and 284,630

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Solution

The third proportional to 189,226 and 284,630 is: 428,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,226 : 284,630 = 284,630 : x
  2. Step 2: Convert to fraction form
    189,226/284,630 = 284,630/x
  3. Step 3: Cross multiply
    189,226x = 284,630 × 284,630
  4. Step 4: Simplify right side
    189,226x = 81,014,236,900
  5. Step 5: Solve for x
    x = 81,014,236,900/189,226
  6. Step 6: Final answer
    x = 428,134.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.