Finding the Fourth Proportional to 249.24, 343.80 and 193.80
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Solution
The fourth proportional to 249.24, 343.80 and 193.80 is: 267.33
Step by Step Solution
- Step 1: Write the proportion equation
249.24 : 343.80 = 193.80 : x - Step 2: Convert to fraction form
249.24/343.80 = 193.80/x - Step 3: Cross multiply
249.24x = 343.80 × 193.80 - Step 4: Simplify right side
249.24x = 66,628.44 - Step 5: Solve for x
x = 66,628.44/249.24 - Step 6: Final answer
x = 267.33
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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.