Finding the Fourth Proportional to 189.19, 284.37 and 108.19
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Solution
The fourth proportional to 189.19, 284.37 and 108.19 is: 162.62
Step by Step Solution
- Step 1: Write the proportion equation
189.19 : 284.37 = 108.19 : x - Step 2: Convert to fraction form
189.19/284.37 = 108.19/x - Step 3: Cross multiply
189.19x = 284.37 × 108.19 - Step 4: Simplify right side
189.19x = 30,765.99 - Step 5: Solve for x
x = 30,765.99/189.19 - Step 6: Final answer
x = 162.62
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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.