Finding the Fourth Proportional to 274.58, 378.91 and 169.69
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Solution
The fourth proportional to 274.58, 378.91 and 169.69 is: 234.17
Step by Step Solution
- Step 1: Write the proportion equation
274.58 : 378.91 = 169.69 : x - Step 2: Convert to fraction form
274.58/378.91 = 169.69/x - Step 3: Cross multiply
274.58x = 378.91 × 169.69 - Step 4: Simplify right side
274.58x = 64,297.24 - Step 5: Solve for x
x = 64,297.24/274.58 - Step 6: Final answer
x = 234.17
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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.