Finding the Fourth Proportional to 195.21, 292.97 and 137.55
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Solution
The fourth proportional to 195.21, 292.97 and 137.55 is: 206.43
Step by Step Solution
- Step 1: Write the proportion equation
195.21 : 292.97 = 137.55 : x - Step 2: Convert to fraction form
195.21/292.97 = 137.55/x - Step 3: Cross multiply
195.21x = 292.97 × 137.55 - Step 4: Simplify right side
195.21x = 40,297.63 - Step 5: Solve for x
x = 40,297.63/195.21 - Step 6: Final answer
x = 206.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.