Finding the Fourth Proportional to 305,992.99, 422,139.34 and 191,072.12
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Solution
The fourth proportional to 305,992.99, 422,139.34 and 191,072.12 is: 263,597.73
Step by Step Solution
- Step 1: Write the proportion equation
305,992.99 : 422,139.34 = 191,072.12 : x - Step 2: Convert to fraction form
305,992.99/422,139.34 = 191,072.12/x - Step 3: Cross multiply
305,992.99x = 422,139.34 × 191,072.12 - Step 4: Simplify right side
305,992.99x = 80,659,055,563.14 - Step 5: Solve for x
x = 80,659,055,563.14/305,992.99 - Step 6: Final answer
x = 263,597.73
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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.