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Finding the Third Proportional to 187,176 and 280,673

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Solution

The third proportional to 187,176 and 280,673 is: 420,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,176 : 280,673 = 280,673 : x
  2. Step 2: Convert to fraction form
    187,176/280,673 = 280,673/x
  3. Step 3: Cross multiply
    187,176x = 280,673 × 280,673
  4. Step 4: Simplify right side
    187,176x = 78,777,332,929
  5. Step 5: Solve for x
    x = 78,777,332,929/187,176
  6. Step 6: Final answer
    x = 420,873.04

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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.