Finding the Fourth Proportional to 146.09, 201.53 and 122.70
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Solution
The fourth proportional to 146.09, 201.53 and 122.70 is: 169.27
Step by Step Solution
- Step 1: Write the proportion equation
146.09 : 201.53 = 122.70 : x - Step 2: Convert to fraction form
146.09/201.53 = 122.70/x - Step 3: Cross multiply
146.09x = 201.53 × 122.70 - Step 4: Simplify right side
146.09x = 24,727.12 - Step 5: Solve for x
x = 24,727.12/146.09 - Step 6: Final answer
x = 169.27
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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.