Finding the Fourth Proportional to 197.40, 296.10 and 163.80
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Solution
The fourth proportional to 197.40, 296.10 and 163.80 is: 245.70
Step by Step Solution
- Step 1: Write the proportion equation
197.40 : 296.10 = 163.80 : x - Step 2: Convert to fraction form
197.40/296.10 = 163.80/x - Step 3: Cross multiply
197.40x = 296.10 × 163.80 - Step 4: Simplify right side
197.40x = 48,501.18 - Step 5: Solve for x
x = 48,501.18/197.40 - Step 6: Final answer
x = 245.70
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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.