Finding the Fourth Proportional to 201.96, 303.01 and 86.46
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Solution
The fourth proportional to 201.96, 303.01 and 86.46 is: 129.72
Step by Step Solution
- Step 1: Write the proportion equation
201.96 : 303.01 = 86.46 : x - Step 2: Convert to fraction form
201.96/303.01 = 86.46/x - Step 3: Cross multiply
201.96x = 303.01 × 86.46 - Step 4: Simplify right side
201.96x = 26,198.24 - Step 5: Solve for x
x = 26,198.24/201.96 - Step 6: Final answer
x = 129.72
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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.