Finding the Fourth Proportional to 192.19, 265.21 and 126.70
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Solution
The fourth proportional to 192.19, 265.21 and 126.70 is: 174.84
Step by Step Solution
- Step 1: Write the proportion equation
192.19 : 265.21 = 126.70 : x - Step 2: Convert to fraction form
192.19/265.21 = 126.70/x - Step 3: Cross multiply
192.19x = 265.21 × 126.70 - Step 4: Simplify right side
192.19x = 33,602.11 - Step 5: Solve for x
x = 33,602.11/192.19 - Step 6: Final answer
x = 174.84
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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.