Finding the Fourth Proportional to 274.62, 378.88 and 195.94
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Solution
The fourth proportional to 274.62, 378.88 and 195.94 is: 270.33
Step by Step Solution
- Step 1: Write the proportion equation
274.62 : 378.88 = 195.94 : x - Step 2: Convert to fraction form
274.62/378.88 = 195.94/x - Step 3: Cross multiply
274.62x = 378.88 × 195.94 - Step 4: Simplify right side
274.62x = 74,236.77 - Step 5: Solve for x
x = 74,236.77/274.62 - Step 6: Final answer
x = 270.33
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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.