Finding the Fourth Proportional to 226.11, 339.71 and 129.99
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Solution
The fourth proportional to 226.11, 339.71 and 129.99 is: 195.30
Step by Step Solution
- Step 1: Write the proportion equation
226.11 : 339.71 = 129.99 : x - Step 2: Convert to fraction form
226.11/339.71 = 129.99/x - Step 3: Cross multiply
226.11x = 339.71 × 129.99 - Step 4: Simplify right side
226.11x = 44,158.25 - Step 5: Solve for x
x = 44,158.25/226.11 - Step 6: Final answer
x = 195.30
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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.