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Finding the Third Proportional to 146.63 and 317.44

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Solution

The third proportional to 146.63 and 317.44 is: 687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.63 : 317.44 = 317.44 : x
  2. Step 2: Convert to fraction form
    146.63/317.44 = 317.44/x
  3. Step 3: Cross multiply
    146.63x = 317.44 × 317.44
  4. Step 4: Simplify right side
    146.63x = 100,766.57
  5. Step 5: Solve for x
    x = 100,766.57/146.63
  6. Step 6: Final answer
    x = 687.24

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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.