Finding the Fourth Proportional to 225,157.20, 311,310.60 and 197,163.60
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Solution
The fourth proportional to 225,157.20, 311,310.60 and 197,163.60 is: 272,605.62
Step by Step Solution
- Step 1: Write the proportion equation
225,157.20 : 311,310.60 = 197,163.60 : x - Step 2: Convert to fraction form
225,157.20/311,310.60 = 197,163.60/x - Step 3: Cross multiply
225,157.20x = 311,310.60 × 197,163.60 - Step 4: Simplify right side
225,157.20x = 61,379,118,614.16 - Step 5: Solve for x
x = 61,379,118,614.16/225,157.20 - Step 6: Final answer
x = 272,605.62
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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.