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Finding the Third Proportional to 4,245.75 and 9,308.25

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Solution

The third proportional to 4,245.75 and 9,308.25 is: 20,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.75 : 9,308.25 = 9,308.25 : x
  2. Step 2: Convert to fraction form
    4,245.75/9,308.25 = 9,308.25/x
  3. Step 3: Cross multiply
    4,245.75x = 9,308.25 × 9,308.25
  4. Step 4: Simplify right side
    4,245.75x = 86,643,518.06
  5. Step 5: Solve for x
    x = 86,643,518.06/4,245.75
  6. Step 6: Final answer
    x = 20,407.12

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.