Finding the Third Proportional to 201 and 485
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Solution
The third proportional to 201 and 485 is: 1,170.27
Step by Step Solution
- Step 1: Write the proportion equation
201 : 485 = 485 : x - Step 2: Convert to fraction form
201/485 = 485/x - Step 3: Cross multiply
201x = 485 × 485 - Step 4: Simplify right side
201x = 235,225 - Step 5: Solve for x
x = 235,225/201 - Step 6: Final answer
x = 1,170.27
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Why These Related Problems?
These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.