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Finding the Third Proportional to 352.41 and 476.30

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Solution

The third proportional to 352.41 and 476.30 is: 643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.41 : 476.30 = 476.30 : x
  2. Step 2: Convert to fraction form
    352.41/476.30 = 476.30/x
  3. Step 3: Cross multiply
    352.41x = 476.30 × 476.30
  4. Step 4: Simplify right side
    352.41x = 226,858.71
  5. Step 5: Solve for x
    x = 226,858.71/352.41
  6. Step 6: Final answer
    x = 643.74

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.