Finding the Third Proportional to 191 and 356.50
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Solution
The third proportional to 191 and 356.50 is: 665.40
Step by Step Solution
- Step 1: Write the proportion equation
191 : 356.50 = 356.50 : x - Step 2: Convert to fraction form
191/356.50 = 356.50/x - Step 3: Cross multiply
191x = 356.50 × 356.50 - Step 4: Simplify right side
191x = 127,092.25 - Step 5: Solve for x
x = 127,092.25/191 - Step 6: Final answer
x = 665.40
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Why These Related Problems?
These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.