Finding the Fourth Proportional to 201.12, 302.40 and 190.26
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Solution
The fourth proportional to 201.12, 302.40 and 190.26 is: 286.07
Step by Step Solution
- Step 1: Write the proportion equation
201.12 : 302.40 = 190.26 : x - Step 2: Convert to fraction form
201.12/302.40 = 190.26/x - Step 3: Cross multiply
201.12x = 302.40 × 190.26 - Step 4: Simplify right side
201.12x = 57,534.62 - Step 5: Solve for x
x = 57,534.62/201.12 - Step 6: Final answer
x = 286.07
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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.