Finding the Fourth Proportional to 211,536.40, 317,304.60 and 202,205.20
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Solution
The fourth proportional to 211,536.40, 317,304.60 and 202,205.20 is: 303,307.80
Step by Step Solution
- Step 1: Write the proportion equation
211,536.40 : 317,304.60 = 202,205.20 : x - Step 2: Convert to fraction form
211,536.40/317,304.60 = 202,205.20/x - Step 3: Cross multiply
211,536.40x = 317,304.60 × 202,205.20 - Step 4: Simplify right side
211,536.40x = 64,160,640,103.92 - Step 5: Solve for x
x = 64,160,640,103.92/211,536.40 - Step 6: Final answer
x = 303,307.80
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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.