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Finding the Third Proportional to 131.13 and 288.13

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Solution

The third proportional to 131.13 and 288.13 is: 633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.13 : 288.13 = 288.13 : x
  2. Step 2: Convert to fraction form
    131.13/288.13 = 288.13/x
  3. Step 3: Cross multiply
    131.13x = 288.13 × 288.13
  4. Step 4: Simplify right side
    131.13x = 83,016.02
  5. Step 5: Solve for x
    x = 83,016.02/131.13
  6. Step 6: Final answer
    x = 633.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.