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Finding the Third Proportional to 81,490.50 and 180,477

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Solution

The third proportional to 81,490.50 and 180,477 is: 399,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490.50 : 180,477 = 180,477 : x
  2. Step 2: Convert to fraction form
    81,490.50/180,477 = 180,477/x
  3. Step 3: Cross multiply
    81,490.50x = 180,477 × 180,477
  4. Step 4: Simplify right side
    81,490.50x = 32,571,947,529
  5. Step 5: Solve for x
    x = 32,571,947,529/81,490.50
  6. Step 6: Final answer
    x = 399,702.39

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.