Finding the Fourth Proportional to 449,163.70, 673,756.35 and 133,630.90
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Solution
The fourth proportional to 449,163.70, 673,756.35 and 133,630.90 is: 200,449.56
Step by Step Solution
- Step 1: Write the proportion equation
449,163.70 : 673,756.35 = 133,630.90 : x - Step 2: Convert to fraction form
449,163.70/673,756.35 = 133,630.90/x - Step 3: Cross multiply
449,163.70x = 673,756.35 × 133,630.90 - Step 4: Simplify right side
449,163.70x = 90,034,667,431.22 - Step 5: Solve for x
x = 90,034,667,431.22/449,163.70 - Step 6: Final answer
x = 200,449.56
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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.