Finding the Fourth Proportional to 272.70, 374.09 and 252.05
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Solution
The fourth proportional to 272.70, 374.09 and 252.05 is: 345.75
Step by Step Solution
- Step 1: Write the proportion equation
272.70 : 374.09 = 252.05 : x - Step 2: Convert to fraction form
272.70/374.09 = 252.05/x - Step 3: Cross multiply
272.70x = 374.09 × 252.05 - Step 4: Simplify right side
272.70x = 94,286.25 - Step 5: Solve for x
x = 94,286.25/272.70 - Step 6: Final answer
x = 345.75
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.