Finding the Fourth Proportional to 311.13, 466.68 and 80.02
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Solution
The fourth proportional to 311.13, 466.68 and 80.02 is: 120.03
Step by Step Solution
- Step 1: Write the proportion equation
311.13 : 466.68 = 80.02 : x - Step 2: Convert to fraction form
311.13/466.68 = 80.02/x - Step 3: Cross multiply
311.13x = 466.68 × 80.02 - Step 4: Simplify right side
311.13x = 37,343.73 - Step 5: Solve for x
x = 37,343.73/311.13 - Step 6: Final answer
x = 120.03
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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.