Finding the Fourth Proportional to 211,998.06, 317,472.21 and 155,704.68
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Solution
The fourth proportional to 211,998.06, 317,472.21 and 155,704.68 is: 233,171.52
Step by Step Solution
- Step 1: Write the proportion equation
211,998.06 : 317,472.21 = 155,704.68 : x - Step 2: Convert to fraction form
211,998.06/317,472.21 = 155,704.68/x - Step 3: Cross multiply
211,998.06x = 317,472.21 × 155,704.68 - Step 4: Simplify right side
211,998.06x = 49,431,908,866.94 - Step 5: Solve for x
x = 49,431,908,866.94/211,998.06 - Step 6: Final answer
x = 233,171.52
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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.