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Finding the Third Proportional to 186,819.75 and 280,459.13

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Solution

The third proportional to 186,819.75 and 280,459.13 is: 421,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,819.75 : 280,459.13 = 280,459.13 : x
  2. Step 2: Convert to fraction form
    186,819.75/280,459.13 = 280,459.13/x
  3. Step 3: Cross multiply
    186,819.75x = 280,459.13 × 280,459.13
  4. Step 4: Simplify right side
    186,819.75x = 78,657,320,795.77
  5. Step 5: Solve for x
    x = 78,657,320,795.77/186,819.75
  6. Step 6: Final answer
    x = 421,033.22

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