Finding the Fourth Proportional to 362,406.20, 543,609.30 and 329,163.80
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Solution
The fourth proportional to 362,406.20, 543,609.30 and 329,163.80 is: 493,745.70
Step by Step Solution
- Step 1: Write the proportion equation
362,406.20 : 543,609.30 = 329,163.80 : x - Step 2: Convert to fraction form
362,406.20/543,609.30 = 329,163.80/x - Step 3: Cross multiply
362,406.20x = 543,609.30 × 329,163.80 - Step 4: Simplify right side
362,406.20x = 178,936,502,903.34 - Step 5: Solve for x
x = 178,936,502,903.34/362,406.20 - Step 6: Final answer
x = 493,745.70
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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.