Finding the Fourth Proportional to 274.44, 378.88 and 181.14
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Solution
The fourth proportional to 274.44, 378.88 and 181.14 is: 250.07
Step by Step Solution
- Step 1: Write the proportion equation
274.44 : 378.88 = 181.14 : x - Step 2: Convert to fraction form
274.44/378.88 = 181.14/x - Step 3: Cross multiply
274.44x = 378.88 × 181.14 - Step 4: Simplify right side
274.44x = 68,630.32 - Step 5: Solve for x
x = 68,630.32/274.44 - Step 6: Final answer
x = 250.07
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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.