Finding the Fourth Proportional to 279,467.40, 419,201.10 and 201,318.60
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Solution
The fourth proportional to 279,467.40, 419,201.10 and 201,318.60 is: 301,977.90
Step by Step Solution
- Step 1: Write the proportion equation
279,467.40 : 419,201.10 = 201,318.60 : x - Step 2: Convert to fraction form
279,467.40/419,201.10 = 201,318.60/x - Step 3: Cross multiply
279,467.40x = 419,201.10 × 201,318.60 - Step 4: Simplify right side
279,467.40x = 84,392,978,570.46 - Step 5: Solve for x
x = 84,392,978,570.46/279,467.40 - Step 6: Final answer
x = 301,977.90
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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.