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Finding the Third Proportional to 341.25 and 756.75

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Solution

The third proportional to 341.25 and 756.75 is: 1,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.25 : 756.75 = 756.75 : x
  2. Step 2: Convert to fraction form
    341.25/756.75 = 756.75/x
  3. Step 3: Cross multiply
    341.25x = 756.75 × 756.75
  4. Step 4: Simplify right side
    341.25x = 572,670.56
  5. Step 5: Solve for x
    x = 572,670.56/341.25
  6. Step 6: Final answer
    x = 1,678.16

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.