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Finding the Third Proportional to 231.75 and 559.88

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Solution

The third proportional to 231.75 and 559.88 is: 1,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.75 : 559.88 = 559.88 : x
  2. Step 2: Convert to fraction form
    231.75/559.88 = 559.88/x
  3. Step 3: Cross multiply
    231.75x = 559.88 × 559.88
  4. Step 4: Simplify right side
    231.75x = 313,460.02
  5. Step 5: Solve for x
    x = 313,460.02/231.75
  6. Step 6: Final answer
    x = 1,352.58

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.