Finding the Fourth Proportional to 236.23, 353.88 and 133.20
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Solution
The fourth proportional to 236.23, 353.88 and 133.20 is: 199.54
Step by Step Solution
- Step 1: Write the proportion equation
236.23 : 353.88 = 133.20 : x - Step 2: Convert to fraction form
236.23/353.88 = 133.20/x - Step 3: Cross multiply
236.23x = 353.88 × 133.20 - Step 4: Simplify right side
236.23x = 47,135.99 - Step 5: Solve for x
x = 47,135.99/236.23 - Step 6: Final answer
x = 199.54
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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.