Finding the Fourth Proportional to 324,858.28, 486,960.19 and 135,423.45
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Solution
The fourth proportional to 324,858.28, 486,960.19 and 135,423.45 is: 202,998.75
Step by Step Solution
- Step 1: Write the proportion equation
324,858.28 : 486,960.19 = 135,423.45 : x - Step 2: Convert to fraction form
324,858.28/486,960.19 = 135,423.45/x - Step 3: Cross multiply
324,858.28x = 486,960.19 × 135,423.45 - Step 4: Simplify right side
324,858.28x = 65,945,826,169.10 - Step 5: Solve for x
x = 65,945,826,169.10/324,858.28 - Step 6: Final answer
x = 202,998.75
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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.