Finding the Fourth Proportional to 398,155.20, 597,405.60 and 201,163.20
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Solution
The fourth proportional to 398,155.20, 597,405.60 and 201,163.20 is: 301,832.11
Step by Step Solution
- Step 1: Write the proportion equation
398,155.20 : 597,405.60 = 201,163.20 : x - Step 2: Convert to fraction form
398,155.20/597,405.60 = 201,163.20/x - Step 3: Cross multiply
398,155.20x = 597,405.60 × 201,163.20 - Step 4: Simplify right side
398,155.20x = 120,176,022,193.92 - Step 5: Solve for x
x = 120,176,022,193.92/398,155.20 - Step 6: Final answer
x = 301,832.11
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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.