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Finding the Third Proportional to 90.63 and 201.13

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Solution

The third proportional to 90.63 and 201.13 is: 446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90.63 : 201.13 = 201.13 : x
  2. Step 2: Convert to fraction form
    90.63/201.13 = 201.13/x
  3. Step 3: Cross multiply
    90.63x = 201.13 × 201.13
  4. Step 4: Simplify right side
    90.63x = 40,451.27
  5. Step 5: Solve for x
    x = 40,451.27/90.63
  6. Step 6: Final answer
    x = 446.36

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.