Finding the Fourth Proportional to 272.70, 376.26 and 199.05
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Solution
The fourth proportional to 272.70, 376.26 and 199.05 is: 274.64
Step by Step Solution
- Step 1: Write the proportion equation
272.70 : 376.26 = 199.05 : x - Step 2: Convert to fraction form
272.70/376.26 = 199.05/x - Step 3: Cross multiply
272.70x = 376.26 × 199.05 - Step 4: Simplify right side
272.70x = 74,894.55 - Step 5: Solve for x
x = 74,894.55/272.70 - Step 6: Final answer
x = 274.64
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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.