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Finding the Third Proportional to 188,000 and 291,247

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Solution

The third proportional to 188,000 and 291,247 is: 451,195.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,000 : 291,247 = 291,247 : x
  2. Step 2: Convert to fraction form
    188,000/291,247 = 291,247/x
  3. Step 3: Cross multiply
    188,000x = 291,247 × 291,247
  4. Step 4: Simplify right side
    188,000x = 84,824,815,009
  5. Step 5: Solve for x
    x = 84,824,815,009/188,000
  6. Step 6: Final answer
    x = 451,195.82

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.