Finding the Fourth Proportional to 252,380.63, 378,489.05 and 83,855.70
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Solution
The fourth proportional to 252,380.63, 378,489.05 and 83,855.70 is: 125,756.34
Step by Step Solution
- Step 1: Write the proportion equation
252,380.63 : 378,489.05 = 83,855.70 : x - Step 2: Convert to fraction form
252,380.63/378,489.05 = 83,855.70/x - Step 3: Cross multiply
252,380.63x = 378,489.05 × 83,855.70 - Step 4: Simplify right side
252,380.63x = 31,738,464,230.09 - Step 5: Solve for x
x = 31,738,464,230.09/252,380.63 - Step 6: Final answer
x = 125,756.34
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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.