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Finding the Third Proportional to 263,272.50 and 513,420.75

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Solution

The third proportional to 263,272.50 and 513,420.75 is: 1,001,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,272.50 : 513,420.75 = 513,420.75 : x
  2. Step 2: Convert to fraction form
    263,272.50/513,420.75 = 513,420.75/x
  3. Step 3: Cross multiply
    263,272.50x = 513,420.75 × 513,420.75
  4. Step 4: Simplify right side
    263,272.50x = 263,600,866,530.56
  5. Step 5: Solve for x
    x = 263,600,866,530.56/263,272.50
  6. Step 6: Final answer
    x = 1,001,247.25

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.