Finding the Fourth Proportional to 201.81, 279.63 and 197.49
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Solution
The fourth proportional to 201.81, 279.63 and 197.49 is: 273.64
Step by Step Solution
- Step 1: Write the proportion equation
201.81 : 279.63 = 197.49 : x - Step 2: Convert to fraction form
201.81/279.63 = 197.49/x - Step 3: Cross multiply
201.81x = 279.63 × 197.49 - Step 4: Simplify right side
201.81x = 55,224.13 - Step 5: Solve for x
x = 55,224.13/201.81 - Step 6: Final answer
x = 273.64
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.