Finding the Fourth Proportional to 122.44, 183.68 and 102.24
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Solution
The fourth proportional to 122.44, 183.68 and 102.24 is: 153.38
Step by Step Solution
- Step 1: Write the proportion equation
122.44 : 183.68 = 102.24 : x - Step 2: Convert to fraction form
122.44/183.68 = 102.24/x - Step 3: Cross multiply
122.44x = 183.68 × 102.24 - Step 4: Simplify right side
122.44x = 18,779.44 - Step 5: Solve for x
x = 18,779.44/122.44 - Step 6: Final answer
x = 153.38
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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.