Finding the Fourth Proportional to 303.26, 418.55 and 178.88
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Solution
The fourth proportional to 303.26, 418.55 and 178.88 is: 246.88
Step by Step Solution
- Step 1: Write the proportion equation
303.26 : 418.55 = 178.88 : x - Step 2: Convert to fraction form
303.26/418.55 = 178.88/x - Step 3: Cross multiply
303.26x = 418.55 × 178.88 - Step 4: Simplify right side
303.26x = 74,867.24 - Step 5: Solve for x
x = 74,867.24/303.26 - Step 6: Final answer
x = 246.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.