Finding the Fourth Proportional to 305,231.19, 421,245.68 and 177,904.05
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Solution
The fourth proportional to 305,231.19, 421,245.68 and 177,904.05 is: 245,523.11
Step by Step Solution
- Step 1: Write the proportion equation
305,231.19 : 421,245.68 = 177,904.05 : x - Step 2: Convert to fraction form
305,231.19/421,245.68 = 177,904.05/x - Step 3: Cross multiply
305,231.19x = 421,245.68 × 177,904.05 - Step 4: Simplify right side
305,231.19x = 74,941,311,627.48 - Step 5: Solve for x
x = 74,941,311,627.48/305,231.19 - Step 6: Final answer
x = 245,523.11
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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.