Finding the Fourth Proportional to 274.44, 378.68 and 174.80
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Solution
The fourth proportional to 274.44, 378.68 and 174.80 is: 241.19
Step by Step Solution
- Step 1: Write the proportion equation
274.44 : 378.68 = 174.80 : x - Step 2: Convert to fraction form
274.44/378.68 = 174.80/x - Step 3: Cross multiply
274.44x = 378.68 × 174.80 - Step 4: Simplify right side
274.44x = 66,193.26 - Step 5: Solve for x
x = 66,193.26/274.44 - Step 6: Final answer
x = 241.19
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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.