Finding the Fourth Proportional to 305,753.87, 421,926.23 and 169,796.49
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Solution
The fourth proportional to 305,753.87, 421,926.23 and 169,796.49 is: 234,311.31
Step by Step Solution
- Step 1: Write the proportion equation
305,753.87 : 421,926.23 = 169,796.49 : x - Step 2: Convert to fraction form
305,753.87/421,926.23 = 169,796.49/x - Step 3: Cross multiply
305,753.87x = 421,926.23 × 169,796.49 - Step 4: Simplify right side
305,753.87x = 71,641,591,735.20 - Step 5: Solve for x
x = 71,641,591,735.20/305,753.87 - Step 6: Final answer
x = 234,311.31
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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.