Finding the Fourth Proportional to 197.33, 296.02 and 128.99
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Solution
The fourth proportional to 197.33, 296.02 and 128.99 is: 193.50
Step by Step Solution
- Step 1: Write the proportion equation
197.33 : 296.02 = 128.99 : x - Step 2: Convert to fraction form
197.33/296.02 = 128.99/x - Step 3: Cross multiply
197.33x = 296.02 × 128.99 - Step 4: Simplify right side
197.33x = 38,183.62 - Step 5: Solve for x
x = 38,183.62/197.33 - Step 6: Final answer
x = 193.50
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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.