Finding the Fourth Proportional to 201.99, 278.74 and 114.69
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Solution
The fourth proportional to 201.99, 278.74 and 114.69 is: 158.27
Step by Step Solution
- Step 1: Write the proportion equation
201.99 : 278.74 = 114.69 : x - Step 2: Convert to fraction form
201.99/278.74 = 114.69/x - Step 3: Cross multiply
201.99x = 278.74 × 114.69 - Step 4: Simplify right side
201.99x = 31,968.69 - Step 5: Solve for x
x = 31,968.69/201.99 - Step 6: Final answer
x = 158.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.