Finding the Third Proportional to 394 and 443
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Solution
The third proportional to 394 and 443 is: 498.09
Step by Step Solution
- Step 1: Write the proportion equation
394 : 443 = 443 : x - Step 2: Convert to fraction form
394/443 = 443/x - Step 3: Cross multiply
394x = 443 × 443 - Step 4: Simplify right side
394x = 196,249 - Step 5: Solve for x
x = 196,249/394 - Step 6: Final answer
x = 498.09
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Why These Related Problems?
These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.