Finding the Fourth Proportional to 211,672.20, 317,249.10 and 93,217.80
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Solution
The fourth proportional to 211,672.20, 317,249.10 and 93,217.80 is: 139,712.55
Step by Step Solution
- Step 1: Write the proportion equation
211,672.20 : 317,249.10 = 93,217.80 : x - Step 2: Convert to fraction form
211,672.20/317,249.10 = 93,217.80/x - Step 3: Cross multiply
211,672.20x = 317,249.10 × 93,217.80 - Step 4: Simplify right side
211,672.20x = 29,573,263,153.98 - Step 5: Solve for x
x = 29,573,263,153.98/211,672.20 - Step 6: Final answer
x = 139,712.55
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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.