Finding the Fourth Proportional to 305,709.41, 421,879.82 and 169,743.62
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Solution
The fourth proportional to 305,709.41, 421,879.82 and 169,743.62 is: 234,246.66
Step by Step Solution
- Step 1: Write the proportion equation
305,709.41 : 421,879.82 = 169,743.62 : x - Step 2: Convert to fraction form
305,709.41/421,879.82 = 169,743.62/x - Step 3: Cross multiply
305,709.41x = 421,879.82 × 169,743.62 - Step 4: Simplify right side
305,709.41x = 71,611,408,057.73 - Step 5: Solve for x
x = 71,611,408,057.73/305,709.41 - Step 6: Final answer
x = 234,246.66
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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.