Finding the Fourth Proportional to 201.68, 277.84 and 187.68
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Solution
The fourth proportional to 201.68, 277.84 and 187.68 is: 258.55
Step by Step Solution
- Step 1: Write the proportion equation
201.68 : 277.84 = 187.68 : x - Step 2: Convert to fraction form
201.68/277.84 = 187.68/x - Step 3: Cross multiply
201.68x = 277.84 × 187.68 - Step 4: Simplify right side
201.68x = 52,145.01 - Step 5: Solve for x
x = 52,145.01/201.68 - Step 6: Final answer
x = 258.55
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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.