Finding the Fourth Proportional to 274.27, 378.18 and 180.99
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Solution
The fourth proportional to 274.27, 378.18 and 180.99 is: 249.56
Step by Step Solution
- Step 1: Write the proportion equation
274.27 : 378.18 = 180.99 : x - Step 2: Convert to fraction form
274.27/378.18 = 180.99/x - Step 3: Cross multiply
274.27x = 378.18 × 180.99 - Step 4: Simplify right side
274.27x = 68,446.80 - Step 5: Solve for x
x = 68,446.80/274.27 - Step 6: Final answer
x = 249.56
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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.