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Finding the Third Proportional to 208.13 and 329.63

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Solution

The third proportional to 208.13 and 329.63 is: 522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208.13 : 329.63 = 329.63 : x
  2. Step 2: Convert to fraction form
    208.13/329.63 = 329.63/x
  3. Step 3: Cross multiply
    208.13x = 329.63 × 329.63
  4. Step 4: Simplify right side
    208.13x = 108,652.64
  5. Step 5: Solve for x
    x = 108,652.64/208.13
  6. Step 6: Final answer
    x = 522.05

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.