Finding the Fourth Proportional to 305,891.44, 422,197.64 and 169,972.08
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Solution
The fourth proportional to 305,891.44, 422,197.64 and 169,972.08 is: 234,598.95
Step by Step Solution
- Step 1: Write the proportion equation
305,891.44 : 422,197.64 = 169,972.08 : x - Step 2: Convert to fraction form
305,891.44/422,197.64 = 169,972.08/x - Step 3: Cross multiply
305,891.44x = 422,197.64 × 169,972.08 - Step 4: Simplify right side
305,891.44x = 71,761,811,041.89 - Step 5: Solve for x
x = 71,761,811,041.89/305,891.44 - Step 6: Final answer
x = 234,598.95
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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.