Finding the Fourth Proportional to 135.40, 201.49 and 133.96
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Solution
The fourth proportional to 135.40, 201.49 and 133.96 is: 199.35
Step by Step Solution
- Step 1: Write the proportion equation
135.40 : 201.49 = 133.96 : x - Step 2: Convert to fraction form
135.40/201.49 = 133.96/x - Step 3: Cross multiply
135.40x = 201.49 × 133.96 - Step 4: Simplify right side
135.40x = 26,991.60 - Step 5: Solve for x
x = 26,991.60/135.40 - Step 6: Final answer
x = 199.35
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.