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Finding the Third Proportional to 270,236.25 and 418,466.25

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Solution

The third proportional to 270,236.25 and 418,466.25 is: 648,003.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,236.25 : 418,466.25 = 418,466.25 : x
  2. Step 2: Convert to fraction form
    270,236.25/418,466.25 = 418,466.25/x
  3. Step 3: Cross multiply
    270,236.25x = 418,466.25 × 418,466.25
  4. Step 4: Simplify right side
    270,236.25x = 175,114,002,389.06
  5. Step 5: Solve for x
    x = 175,114,002,389.06/270,236.25
  6. Step 6: Final answer
    x = 648,003.38

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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.