Finding the Fourth Proportional to 398,163.20, 597,417.60 and 201,171.20
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Solution
The fourth proportional to 398,163.20, 597,417.60 and 201,171.20 is: 301,844.11
Step by Step Solution
- Step 1: Write the proportion equation
398,163.20 : 597,417.60 = 201,171.20 : x - Step 2: Convert to fraction form
398,163.20/597,417.60 = 201,171.20/x - Step 3: Cross multiply
398,163.20x = 597,417.60 × 201,171.20 - Step 4: Simplify right side
398,163.20x = 120,183,215,493.12 - Step 5: Solve for x
x = 120,183,215,493.12/398,163.20 - Step 6: Final answer
x = 301,844.11
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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.