Finding the Fourth Proportional to 197.44, 296.01 and 81.91
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Solution
The fourth proportional to 197.44, 296.01 and 81.91 is: 122.80
Step by Step Solution
- Step 1: Write the proportion equation
197.44 : 296.01 = 81.91 : x - Step 2: Convert to fraction form
197.44/296.01 = 81.91/x - Step 3: Cross multiply
197.44x = 296.01 × 81.91 - Step 4: Simplify right side
197.44x = 24,246.18 - Step 5: Solve for x
x = 24,246.18/197.44 - Step 6: Final answer
x = 122.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.