Finding the Fourth Proportional to 226.36, 339.18 and 140.68
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Solution
The fourth proportional to 226.36, 339.18 and 140.68 is: 210.80
Step by Step Solution
- Step 1: Write the proportion equation
226.36 : 339.18 = 140.68 : x - Step 2: Convert to fraction form
226.36/339.18 = 140.68/x - Step 3: Cross multiply
226.36x = 339.18 × 140.68 - Step 4: Simplify right side
226.36x = 47,715.84 - Step 5: Solve for x
x = 47,715.84/226.36 - Step 6: Final answer
x = 210.80
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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.