Finding the Fourth Proportional to 311.17, 466.41 and 276.99
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Solution
The fourth proportional to 311.17, 466.41 and 276.99 is: 415.18
Step by Step Solution
- Step 1: Write the proportion equation
311.17 : 466.41 = 276.99 : x - Step 2: Convert to fraction form
311.17/466.41 = 276.99/x - Step 3: Cross multiply
311.17x = 466.41 × 276.99 - Step 4: Simplify right side
311.17x = 129,190.69 - Step 5: Solve for x
x = 129,190.69/311.17 - Step 6: Final answer
x = 415.18
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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.