Finding the Fourth Proportional to 189.23, 283.85 and 161.99
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Solution
The fourth proportional to 189.23, 283.85 and 161.99 is: 242.99
Step by Step Solution
- Step 1: Write the proportion equation
189.23 : 283.85 = 161.99 : x - Step 2: Convert to fraction form
189.23/283.85 = 161.99/x - Step 3: Cross multiply
189.23x = 283.85 × 161.99 - Step 4: Simplify right side
189.23x = 45,980.86 - Step 5: Solve for x
x = 45,980.86/189.23 - Step 6: Final answer
x = 242.99
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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.