Finding the Fourth Proportional to 197.44, 272.44 and 119.84
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Solution
The fourth proportional to 197.44, 272.44 and 119.84 is: 165.36
Step by Step Solution
- Step 1: Write the proportion equation
197.44 : 272.44 = 119.84 : x - Step 2: Convert to fraction form
197.44/272.44 = 119.84/x - Step 3: Cross multiply
197.44x = 272.44 × 119.84 - Step 4: Simplify right side
197.44x = 32,649.21 - Step 5: Solve for x
x = 32,649.21/197.44 - Step 6: Final answer
x = 165.36
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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.