Finding the Fourth Proportional to 274.74, 378.98 and 174.97
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Solution
The fourth proportional to 274.74, 378.98 and 174.97 is: 241.36
Step by Step Solution
- Step 1: Write the proportion equation
274.74 : 378.98 = 174.97 : x - Step 2: Convert to fraction form
274.74/378.98 = 174.97/x - Step 3: Cross multiply
274.74x = 378.98 × 174.97 - Step 4: Simplify right side
274.74x = 66,310.13 - Step 5: Solve for x
x = 66,310.13/274.74 - Step 6: Final answer
x = 241.36
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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.