Finding the Fourth Proportional to 211,381.84, 317,072.08 and 53,609.91
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Solution
The fourth proportional to 211,381.84, 317,072.08 and 53,609.91 is: 80,414.69
Step by Step Solution
- Step 1: Write the proportion equation
211,381.84 : 317,072.08 = 53,609.91 : x - Step 2: Convert to fraction form
211,381.84/317,072.08 = 53,609.91/x - Step 3: Cross multiply
211,381.84x = 317,072.08 × 53,609.91 - Step 4: Simplify right side
211,381.84x = 16,998,205,672.31 - Step 5: Solve for x
x = 16,998,205,672.31/211,381.84 - Step 6: Final answer
x = 80,414.69
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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.