Finding the Fourth Proportional to 201.36, 301.68 and 153.12
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Solution
The fourth proportional to 201.36, 301.68 and 153.12 is: 229.41
Step by Step Solution
- Step 1: Write the proportion equation
201.36 : 301.68 = 153.12 : x - Step 2: Convert to fraction form
201.36/301.68 = 153.12/x - Step 3: Cross multiply
201.36x = 301.68 × 153.12 - Step 4: Simplify right side
201.36x = 46,193.24 - Step 5: Solve for x
x = 46,193.24/201.36 - Step 6: Final answer
x = 229.41
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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.