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Finding the Third Proportional to 137.63 and 229.13

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Solution

The third proportional to 137.63 and 229.13 is: 381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137.63 : 229.13 = 229.13 : x
  2. Step 2: Convert to fraction form
    137.63/229.13 = 229.13/x
  3. Step 3: Cross multiply
    137.63x = 229.13 × 229.13
  4. Step 4: Simplify right side
    137.63x = 52,498.27
  5. Step 5: Solve for x
    x = 52,498.27/137.63
  6. Step 6: Final answer
    x = 381.46

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.