Finding the Fourth Proportional to 192.36, 265.21 and 126.75
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Solution
The fourth proportional to 192.36, 265.21 and 126.75 is: 174.75
Step by Step Solution
- Step 1: Write the proportion equation
192.36 : 265.21 = 126.75 : x - Step 2: Convert to fraction form
192.36/265.21 = 126.75/x - Step 3: Cross multiply
192.36x = 265.21 × 126.75 - Step 4: Simplify right side
192.36x = 33,615.37 - Step 5: Solve for x
x = 33,615.37/192.36 - Step 6: Final answer
x = 174.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.