Finding the Fourth Proportional to 279,949.26, 419,837.76 and 80,216.14
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Solution
The fourth proportional to 279,949.26, 419,837.76 and 80,216.14 is: 120,299.53
Step by Step Solution
- Step 1: Write the proportion equation
279,949.26 : 419,837.76 = 80,216.14 : x - Step 2: Convert to fraction form
279,949.26/419,837.76 = 80,216.14/x - Step 3: Cross multiply
279,949.26x = 419,837.76 × 80,216.14 - Step 4: Simplify right side
279,949.26x = 33,677,764,533.45 - Step 5: Solve for x
x = 33,677,764,533.45/279,949.26 - Step 6: Final answer
x = 120,299.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.