Finding the Fourth Proportional to 189.08, 283.74 and 126.68
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Solution
The fourth proportional to 189.08, 283.74 and 126.68 is: 190.10
Step by Step Solution
- Step 1: Write the proportion equation
189.08 : 283.74 = 126.68 : x - Step 2: Convert to fraction form
189.08/283.74 = 126.68/x - Step 3: Cross multiply
189.08x = 283.74 × 126.68 - Step 4: Simplify right side
189.08x = 35,944.18 - Step 5: Solve for x
x = 35,944.18/189.08 - Step 6: Final answer
x = 190.10
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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.