Finding the Fourth Proportional to 305,991.99, 422,137.95 and 191,071.11
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Solution
The fourth proportional to 305,991.99, 422,137.95 and 191,071.11 is: 263,596.33
Step by Step Solution
- Step 1: Write the proportion equation
305,991.99 : 422,137.95 = 191,071.11 : x - Step 2: Convert to fraction form
305,991.99/422,137.95 = 191,071.11/x - Step 3: Cross multiply
305,991.99x = 422,137.95 × 191,071.11 - Step 4: Simplify right side
305,991.99x = 80,658,366,679.62 - Step 5: Solve for x
x = 80,658,366,679.62/305,991.99 - Step 6: Final answer
x = 263,596.33
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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.