Finding the Fourth Proportional to 192,419.80, 288,676.68 and 135,604.53
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Solution
The fourth proportional to 192,419.80, 288,676.68 and 135,604.53 is: 203,439.90
Step by Step Solution
- Step 1: Write the proportion equation
192,419.80 : 288,676.68 = 135,604.53 : x - Step 2: Convert to fraction form
192,419.80/288,676.68 = 135,604.53/x - Step 3: Cross multiply
192,419.80x = 288,676.68 × 135,604.53 - Step 4: Simplify right side
192,419.80x = 39,145,866,149.01 - Step 5: Solve for x
x = 39,145,866,149.01/192,419.80 - Step 6: Final answer
x = 203,439.90
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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.