Finding the Fourth Proportional to 220.26, 330.41 and 75.99
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Solution
The fourth proportional to 220.26, 330.41 and 75.99 is: 113.99
Step by Step Solution
- Step 1: Write the proportion equation
220.26 : 330.41 = 75.99 : x - Step 2: Convert to fraction form
220.26/330.41 = 75.99/x - Step 3: Cross multiply
220.26x = 330.41 × 75.99 - Step 4: Simplify right side
220.26x = 25,107.48 - Step 5: Solve for x
x = 25,107.48/220.26 - Step 6: Final answer
x = 113.99
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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.