Finding the Fourth Proportional to 249.11, 343.62 and 161.63
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Solution
The fourth proportional to 249.11, 343.62 and 161.63 is: 222.95
Step by Step Solution
- Step 1: Write the proportion equation
249.11 : 343.62 = 161.63 : x - Step 2: Convert to fraction form
249.11/343.62 = 161.63/x - Step 3: Cross multiply
249.11x = 343.62 × 161.63 - Step 4: Simplify right side
249.11x = 55,537.58 - Step 5: Solve for x
x = 55,537.58/249.11 - Step 6: Final answer
x = 222.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.