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Finding the Third Proportional to 269.30 and 581.58

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Solution

The third proportional to 269.30 and 581.58 is: 1,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.30 : 581.58 = 581.58 : x
  2. Step 2: Convert to fraction form
    269.30/581.58 = 581.58/x
  3. Step 3: Cross multiply
    269.30x = 581.58 × 581.58
  4. Step 4: Simplify right side
    269.30x = 338,233.12
  5. Step 5: Solve for x
    x = 338,233.12/269.30
  6. Step 6: Final answer
    x = 1,255.99

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.