Finding the Fourth Proportional to 298,622.40, 447,415.20 and 193,387.20
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Solution
The fourth proportional to 298,622.40, 447,415.20 and 193,387.20 is: 289,745.09
Step by Step Solution
- Step 1: Write the proportion equation
298,622.40 : 447,415.20 = 193,387.20 : x - Step 2: Convert to fraction form
298,622.40/447,415.20 = 193,387.20/x - Step 3: Cross multiply
298,622.40x = 447,415.20 × 193,387.20 - Step 4: Simplify right side
298,622.40x = 86,524,372,765.44 - Step 5: Solve for x
x = 86,524,372,765.44/298,622.40 - Step 6: Final answer
x = 289,745.09
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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.