Finding the Fourth Proportional to 150, 225 and 36
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Solution
The fourth proportional to 150, 225 and 36 is: 54
Step by Step Solution
- Step 1: Write the proportion equation
150 : 225 = 36 : x - Step 2: Convert to fraction form
150/225 = 36/x - Step 3: Cross multiply
150x = 225 × 36 - Step 4: Simplify right side
150x = 8,100 - Step 5: Solve for x
x = 8,100/150 - Step 6: Final answer
x = 54
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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.