Finding the Fourth Proportional to 367.70, 550.79 and 220.99
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Solution
The fourth proportional to 367.70, 550.79 and 220.99 is: 331.02
Step by Step Solution
- Step 1: Write the proportion equation
367.70 : 550.79 = 220.99 : x - Step 2: Convert to fraction form
367.70/550.79 = 220.99/x - Step 3: Cross multiply
367.70x = 550.79 × 220.99 - Step 4: Simplify right side
367.70x = 121,717.43 - Step 5: Solve for x
x = 121,717.43/367.70 - Step 6: Final answer
x = 331.02
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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.