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Finding the Third Proportional to 286.31 and 675.28

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Solution

The third proportional to 286.31 and 675.28 is: 1,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.31 : 675.28 = 675.28 : x
  2. Step 2: Convert to fraction form
    286.31/675.28 = 675.28/x
  3. Step 3: Cross multiply
    286.31x = 675.28 × 675.28
  4. Step 4: Simplify right side
    286.31x = 456,004.77
  5. Step 5: Solve for x
    x = 456,004.77/286.31
  6. Step 6: Final answer
    x = 1,592.68

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.