Finding the Fourth Proportional to 201.13, 277.70 and 148.68
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Solution
The fourth proportional to 201.13, 277.70 and 148.68 is: 205.28
Step by Step Solution
- Step 1: Write the proportion equation
201.13 : 277.70 = 148.68 : x - Step 2: Convert to fraction form
201.13/277.70 = 148.68/x - Step 3: Cross multiply
201.13x = 277.70 × 148.68 - Step 4: Simplify right side
201.13x = 41,288.44 - Step 5: Solve for x
x = 41,288.44/201.13 - Step 6: Final answer
x = 205.28
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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.