Finding the Fourth Proportional to 146.62, 202.26 and 122.08
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Solution
The fourth proportional to 146.62, 202.26 and 122.08 is: 168.41
Step by Step Solution
- Step 1: Write the proportion equation
146.62 : 202.26 = 122.08 : x - Step 2: Convert to fraction form
146.62/202.26 = 122.08/x - Step 3: Cross multiply
146.62x = 202.26 × 122.08 - Step 4: Simplify right side
146.62x = 24,691.90 - Step 5: Solve for x
x = 24,691.90/146.62 - Step 6: Final answer
x = 168.41
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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.