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Finding the Third Proportional to 317,380.50 and 491,744.25

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Solution

The third proportional to 317,380.50 and 491,744.25 is: 761,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,380.50 : 491,744.25 = 491,744.25 : x
  2. Step 2: Convert to fraction form
    317,380.50/491,744.25 = 491,744.25/x
  3. Step 3: Cross multiply
    317,380.50x = 491,744.25 × 491,744.25
  4. Step 4: Simplify right side
    317,380.50x = 241,812,407,408.06
  5. Step 5: Solve for x
    x = 241,812,407,408.06/317,380.50
  6. Step 6: Final answer
    x = 761,900.64

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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.