Finding the Fourth Proportional to 305,889.43, 422,194.88 and 169,970.08
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Solution
The fourth proportional to 305,889.43, 422,194.88 and 169,970.08 is: 234,596.20
Step by Step Solution
- Step 1: Write the proportion equation
305,889.43 : 422,194.88 = 169,970.08 : x - Step 2: Convert to fraction form
305,889.43/422,194.88 = 169,970.08/x - Step 3: Cross multiply
305,889.43x = 422,194.88 × 169,970.08 - Step 4: Simplify right side
305,889.43x = 71,760,497,529.19 - Step 5: Solve for x
x = 71,760,497,529.19/305,889.43 - Step 6: Final answer
x = 234,596.20
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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.