Finding the Third Proportional to 157 and 275
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Solution
The third proportional to 157 and 275 is: 481.69
Step by Step Solution
- Step 1: Write the proportion equation
157 : 275 = 275 : x - Step 2: Convert to fraction form
157/275 = 275/x - Step 3: Cross multiply
157x = 275 × 275 - Step 4: Simplify right side
157x = 75,625 - Step 5: Solve for x
x = 75,625/157 - Step 6: Final answer
x = 481.69
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Why These Related Problems?
These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.