Finding the Fourth Proportional to 135.41, 201.69 and 133.52
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Solution
The fourth proportional to 135.41, 201.69 and 133.52 is: 198.87
Step by Step Solution
- Step 1: Write the proportion equation
135.41 : 201.69 = 133.52 : x - Step 2: Convert to fraction form
135.41/201.69 = 133.52/x - Step 3: Cross multiply
135.41x = 201.69 × 133.52 - Step 4: Simplify right side
135.41x = 26,928.64 - Step 5: Solve for x
x = 26,928.64/135.41 - Step 6: Final answer
x = 198.87
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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.