Finding the Fourth Proportional to 195.14, 292.26 and 122.78
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Solution
The fourth proportional to 195.14, 292.26 and 122.78 is: 183.89
Step by Step Solution
- Step 1: Write the proportion equation
195.14 : 292.26 = 122.78 : x - Step 2: Convert to fraction form
195.14/292.26 = 122.78/x - Step 3: Cross multiply
195.14x = 292.26 × 122.78 - Step 4: Simplify right side
195.14x = 35,883.68 - Step 5: Solve for x
x = 35,883.68/195.14 - Step 6: Final answer
x = 183.89
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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.