Finding the Fourth Proportional to 122.70, 183.88 and 88.26
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Solution
The fourth proportional to 122.70, 183.88 and 88.26 is: 132.27
Step by Step Solution
- Step 1: Write the proportion equation
122.70 : 183.88 = 88.26 : x - Step 2: Convert to fraction form
122.70/183.88 = 88.26/x - Step 3: Cross multiply
122.70x = 183.88 × 88.26 - Step 4: Simplify right side
122.70x = 16,229.25 - Step 5: Solve for x
x = 16,229.25/122.70 - Step 6: Final answer
x = 132.27
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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.