Finding the Fourth Proportional to 311.84, 466.97 and 277.23
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Solution
The fourth proportional to 311.84, 466.97 and 277.23 is: 415.14
Step by Step Solution
- Step 1: Write the proportion equation
311.84 : 466.97 = 277.23 : x - Step 2: Convert to fraction form
311.84/466.97 = 277.23/x - Step 3: Cross multiply
311.84x = 466.97 × 277.23 - Step 4: Simplify right side
311.84x = 129,456.71 - Step 5: Solve for x
x = 129,456.71/311.84 - Step 6: Final answer
x = 415.14
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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.