Finding the Fourth Proportional to 201.21, 302.40 and 167.19
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Solution
The fourth proportional to 201.21, 302.40 and 167.19 is: 251.27
Step by Step Solution
- Step 1: Write the proportion equation
201.21 : 302.40 = 167.19 : x - Step 2: Convert to fraction form
201.21/302.40 = 167.19/x - Step 3: Cross multiply
201.21x = 302.40 × 167.19 - Step 4: Simplify right side
201.21x = 50,558.26 - Step 5: Solve for x
x = 50,558.26/201.21 - Step 6: Final answer
x = 251.27
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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.