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Finding the Third Proportional to 149,318 and 324,880

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Solution

The third proportional to 149,318 and 324,880 is: 706,860.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,318 : 324,880 = 324,880 : x
  2. Step 2: Convert to fraction form
    149,318/324,880 = 324,880/x
  3. Step 3: Cross multiply
    149,318x = 324,880 × 324,880
  4. Step 4: Simplify right side
    149,318x = 105,547,014,400
  5. Step 5: Solve for x
    x = 105,547,014,400/149,318
  6. Step 6: Final answer
    x = 706,860.62

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.