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Finding the Third Proportional to 284.88 and 679.75

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Solution

The third proportional to 284.88 and 679.75 is: 1,621.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.88 : 679.75 = 679.75 : x
  2. Step 2: Convert to fraction form
    284.88/679.75 = 679.75/x
  3. Step 3: Cross multiply
    284.88x = 679.75 × 679.75
  4. Step 4: Simplify right side
    284.88x = 462,060.06
  5. Step 5: Solve for x
    x = 462,060.06/284.88
  6. Step 6: Final answer
    x = 1,621.97

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.