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Finding the Third Proportional to 7.31 and 14.63

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Solution

The third proportional to 7.31 and 14.63 is: 29.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.31 : 14.63 = 14.63 : x
  2. Step 2: Convert to fraction form
    7.31/14.63 = 14.63/x
  3. Step 3: Cross multiply
    7.31x = 14.63 × 14.63
  4. Step 4: Simplify right side
    7.31x = 213.89
  5. Step 5: Solve for x
    x = 213.89/7.31
  6. Step 6: Final answer
    x = 29.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.