Finding the Fourth Proportional to 261.93, 393.06 and 201.12
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Solution
The fourth proportional to 261.93, 393.06 and 201.12 is: 301.81
Step by Step Solution
- Step 1: Write the proportion equation
261.93 : 393.06 = 201.12 : x - Step 2: Convert to fraction form
261.93/393.06 = 201.12/x - Step 3: Cross multiply
261.93x = 393.06 × 201.12 - Step 4: Simplify right side
261.93x = 79,052.23 - Step 5: Solve for x
x = 79,052.23/261.93 - Step 6: Final answer
x = 301.81
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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.