Finding the Fourth Proportional to 197.44, 272.88 and 195.76
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Solution
The fourth proportional to 197.44, 272.88 and 195.76 is: 270.56
Step by Step Solution
- Step 1: Write the proportion equation
197.44 : 272.88 = 195.76 : x - Step 2: Convert to fraction form
197.44/272.88 = 195.76/x - Step 3: Cross multiply
197.44x = 272.88 × 195.76 - Step 4: Simplify right side
197.44x = 53,418.99 - Step 5: Solve for x
x = 53,418.99/197.44 - Step 6: Final answer
x = 270.56
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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.