Finding the Fourth Proportional to 275,299.76, 379,942.44 and 154,473.68
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Solution
The fourth proportional to 275,299.76, 379,942.44 and 154,473.68 is: 213,189.82
Step by Step Solution
- Step 1: Write the proportion equation
275,299.76 : 379,942.44 = 154,473.68 : x - Step 2: Convert to fraction form
275,299.76/379,942.44 = 154,473.68/x - Step 3: Cross multiply
275,299.76x = 379,942.44 × 154,473.68 - Step 4: Simplify right side
275,299.76x = 58,691,106,894.98 - Step 5: Solve for x
x = 58,691,106,894.98/275,299.76 - Step 6: Final answer
x = 213,189.82
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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.