Finding the Fourth Proportional to 201.18, 277.64 and 135.68
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Solution
The fourth proportional to 201.18, 277.64 and 135.68 is: 187.25
Step by Step Solution
- Step 1: Write the proportion equation
201.18 : 277.64 = 135.68 : x - Step 2: Convert to fraction form
201.18/277.64 = 135.68/x - Step 3: Cross multiply
201.18x = 277.64 × 135.68 - Step 4: Simplify right side
201.18x = 37,670.20 - Step 5: Solve for x
x = 37,670.20/201.18 - Step 6: Final answer
x = 187.25
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.