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Finding the Third Proportional to 201.89 and 436.13

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Solution

The third proportional to 201.89 and 436.13 is: 942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.89 : 436.13 = 436.13 : x
  2. Step 2: Convert to fraction form
    201.89/436.13 = 436.13/x
  3. Step 3: Cross multiply
    201.89x = 436.13 × 436.13
  4. Step 4: Simplify right side
    201.89x = 190,205.02
  5. Step 5: Solve for x
    x = 190,205.02/201.89
  6. Step 6: Final answer
    x = 942.12

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.