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Finding the Third Proportional to 180,285 and 384,700

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Solution

The third proportional to 180,285 and 384,700 is: 820,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,285 : 384,700 = 384,700 : x
  2. Step 2: Convert to fraction form
    180,285/384,700 = 384,700/x
  3. Step 3: Cross multiply
    180,285x = 384,700 × 384,700
  4. Step 4: Simplify right side
    180,285x = 147,994,090,000
  5. Step 5: Solve for x
    x = 147,994,090,000/180,285
  6. Step 6: Final answer
    x = 820,889.65

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.