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Finding the Third Proportional to 286.31 and 475.88

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Solution

The third proportional to 286.31 and 475.88 is: 790.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.31 : 475.88 = 475.88 : x
  2. Step 2: Convert to fraction form
    286.31/475.88 = 475.88/x
  3. Step 3: Cross multiply
    286.31x = 475.88 × 475.88
  4. Step 4: Simplify right side
    286.31x = 226,457.02
  5. Step 5: Solve for x
    x = 226,457.02/286.31
  6. Step 6: Final answer
    x = 790.94

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.