Finding the Fourth Proportional to 388.19, 582.26 and 193.11
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Solution
The fourth proportional to 388.19, 582.26 and 193.11 is: 289.65
Step by Step Solution
- Step 1: Write the proportion equation
388.19 : 582.26 = 193.11 : x - Step 2: Convert to fraction form
388.19/582.26 = 193.11/x - Step 3: Cross multiply
388.19x = 582.26 × 193.11 - Step 4: Simplify right side
388.19x = 112,440.23 - Step 5: Solve for x
x = 112,440.23/388.19 - Step 6: Final answer
x = 289.65
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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.