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Finding the Third Proportional to 140.91 and 304.17

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Solution

The third proportional to 140.91 and 304.17 is: 656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.91 : 304.17 = 304.17 : x
  2. Step 2: Convert to fraction form
    140.91/304.17 = 304.17/x
  3. Step 3: Cross multiply
    140.91x = 304.17 × 304.17
  4. Step 4: Simplify right side
    140.91x = 92,520.53
  5. Step 5: Solve for x
    x = 92,520.53/140.91
  6. Step 6: Final answer
    x = 656.61

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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.