Finding the Fourth Proportional to 311.98, 466.92 and 265.99
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Solution
The fourth proportional to 311.98, 466.92 and 265.99 is: 398.09
Step by Step Solution
- Step 1: Write the proportion equation
311.98 : 466.92 = 265.99 : x - Step 2: Convert to fraction form
311.98/466.92 = 265.99/x - Step 3: Cross multiply
311.98x = 466.92 × 265.99 - Step 4: Simplify right side
311.98x = 124,196.05 - Step 5: Solve for x
x = 124,196.05/311.98 - Step 6: Final answer
x = 398.09
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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.