Finding the Fourth Proportional to 274.47, 378.92 and 181.44
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Solution
The fourth proportional to 274.47, 378.92 and 181.44 is: 250.49
Step by Step Solution
- Step 1: Write the proportion equation
274.47 : 378.92 = 181.44 : x - Step 2: Convert to fraction form
274.47/378.92 = 181.44/x - Step 3: Cross multiply
274.47x = 378.92 × 181.44 - Step 4: Simplify right side
274.47x = 68,751.24 - Step 5: Solve for x
x = 68,751.24/274.47 - Step 6: Final answer
x = 250.49
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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.