Finding the Fourth Proportional to 311.18, 466.99 and 195.80
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Solution
The fourth proportional to 311.18, 466.99 and 195.80 is: 293.83
Step by Step Solution
- Step 1: Write the proportion equation
311.18 : 466.99 = 195.80 : x - Step 2: Convert to fraction form
311.18/466.99 = 195.80/x - Step 3: Cross multiply
311.18x = 466.99 × 195.80 - Step 4: Simplify right side
311.18x = 91,433.82 - Step 5: Solve for x
x = 91,433.82/311.18 - Step 6: Final answer
x = 293.83
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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.