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Finding the Third Proportional to 314,282.25 and 486,540

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Solution

The third proportional to 314,282.25 and 486,540 is: 753,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,282.25 : 486,540 = 486,540 : x
  2. Step 2: Convert to fraction form
    314,282.25/486,540 = 486,540/x
  3. Step 3: Cross multiply
    314,282.25x = 486,540 × 486,540
  4. Step 4: Simplify right side
    314,282.25x = 236,721,171,600
  5. Step 5: Solve for x
    x = 236,721,171,600/314,282.25
  6. Step 6: Final answer
    x = 753,212.03

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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.