Finding the Fourth Proportional to 135.61, 201.90 and 133.99
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Solution
The fourth proportional to 135.61, 201.90 and 133.99 is: 199.49
Step by Step Solution
- Step 1: Write the proportion equation
135.61 : 201.90 = 133.99 : x - Step 2: Convert to fraction form
135.61/201.90 = 133.99/x - Step 3: Cross multiply
135.61x = 201.90 × 133.99 - Step 4: Simplify right side
135.61x = 27,052.58 - Step 5: Solve for x
x = 27,052.58/135.61 - Step 6: Final answer
x = 199.49
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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.