Finding the Fourth Proportional to 178.20, 246.99 and 174.96
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Solution
The fourth proportional to 178.20, 246.99 and 174.96 is: 242.50
Step by Step Solution
- Step 1: Write the proportion equation
178.20 : 246.99 = 174.96 : x - Step 2: Convert to fraction form
178.20/246.99 = 174.96/x - Step 3: Cross multiply
178.20x = 246.99 × 174.96 - Step 4: Simplify right side
178.20x = 43,213.37 - Step 5: Solve for x
x = 43,213.37/178.20 - Step 6: Final answer
x = 242.50
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.