Finding the Third Proportional to 393 and 662
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Solution
The third proportional to 393 and 662 is: 1,115.12
Step by Step Solution
- Step 1: Write the proportion equation
393 : 662 = 662 : x - Step 2: Convert to fraction form
393/662 = 662/x - Step 3: Cross multiply
393x = 662 × 662 - Step 4: Simplify right side
393x = 438,244 - Step 5: Solve for x
x = 438,244/393 - Step 6: Final answer
x = 1,115.12
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These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.