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Finding the Third Proportional to 307,242 and 626,682.25

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Solution

The third proportional to 307,242 and 626,682.25 is: 1,278,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,242 : 626,682.25 = 626,682.25 : x
  2. Step 2: Convert to fraction form
    307,242/626,682.25 = 626,682.25/x
  3. Step 3: Cross multiply
    307,242x = 626,682.25 × 626,682.25
  4. Step 4: Simplify right side
    307,242x = 392,730,642,465.06
  5. Step 5: Solve for x
    x = 392,730,642,465.06/307,242
  6. Step 6: Final answer
    x = 1,278,245.30

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.