Finding the Fourth Proportional to 355,841.40, 491,048.91 and 202,928.81
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Solution
The fourth proportional to 355,841.40, 491,048.91 and 202,928.81 is: 280,034.79
Step by Step Solution
- Step 1: Write the proportion equation
355,841.40 : 491,048.91 = 202,928.81 : x - Step 2: Convert to fraction form
355,841.40/491,048.91 = 202,928.81/x - Step 3: Cross multiply
355,841.40x = 491,048.91 × 202,928.81 - Step 4: Simplify right side
355,841.40x = 99,647,970,958.10 - Step 5: Solve for x
x = 99,647,970,958.10/355,841.40 - Step 6: Final answer
x = 280,034.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.