Finding the Fourth Proportional to 146.44, 202.22 and 122.14
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Solution
The fourth proportional to 146.44, 202.22 and 122.14 is: 168.66
Step by Step Solution
- Step 1: Write the proportion equation
146.44 : 202.22 = 122.14 : x - Step 2: Convert to fraction form
146.44/202.22 = 122.14/x - Step 3: Cross multiply
146.44x = 202.22 × 122.14 - Step 4: Simplify right side
146.44x = 24,699.15 - Step 5: Solve for x
x = 24,699.15/146.44 - Step 6: Final answer
x = 168.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.