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Finding the Third Proportional to 328.13 and 364.13

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Solution

The third proportional to 328.13 and 364.13 is: 404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.13 : 364.13 = 364.13 : x
  2. Step 2: Convert to fraction form
    328.13/364.13 = 364.13/x
  3. Step 3: Cross multiply
    328.13x = 364.13 × 364.13
  4. Step 4: Simplify right side
    328.13x = 132,587.02
  5. Step 5: Solve for x
    x = 132,587.02/328.13
  6. Step 6: Final answer
    x = 404.07

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.