Finding the Fourth Proportional to 300,043.43, 450,163.70 and 122,699.60
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Solution
The fourth proportional to 300,043.43, 450,163.70 and 122,699.60 is: 184,089.70
Step by Step Solution
- Step 1: Write the proportion equation
300,043.43 : 450,163.70 = 122,699.60 : x - Step 2: Convert to fraction form
300,043.43/450,163.70 = 122,699.60/x - Step 3: Cross multiply
300,043.43x = 450,163.70 × 122,699.60 - Step 4: Simplify right side
300,043.43x = 55,234,905,311.02 - Step 5: Solve for x
x = 55,234,905,311.02/300,043.43 - Step 6: Final answer
x = 184,089.70
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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.