Finding the Fourth Proportional to 225.26, 338.28 and 122.75
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Solution
The fourth proportional to 225.26, 338.28 and 122.75 is: 184.33
Step by Step Solution
- Step 1: Write the proportion equation
225.26 : 338.28 = 122.75 : x - Step 2: Convert to fraction form
225.26/338.28 = 122.75/x - Step 3: Cross multiply
225.26x = 338.28 × 122.75 - Step 4: Simplify right side
225.26x = 41,523.68 - Step 5: Solve for x
x = 41,523.68/225.26 - Step 6: Final answer
x = 184.33
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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.