Finding the Third Proportional to 211 and 407
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Solution
The third proportional to 211 and 407 is: 785.07
Step by Step Solution
- Step 1: Write the proportion equation
211 : 407 = 407 : x - Step 2: Convert to fraction form
211/407 = 407/x - Step 3: Cross multiply
211x = 407 × 407 - Step 4: Simplify right side
211x = 165,649 - Step 5: Solve for x
x = 165,649/211 - Step 6: Final answer
x = 785.07
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These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.