Finding the Fourth Proportional to 281,865.26, 422,354.43 and 217,979.79
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Solution
The fourth proportional to 281,865.26, 422,354.43 and 217,979.79 is: 326,626.74
Step by Step Solution
- Step 1: Write the proportion equation
281,865.26 : 422,354.43 = 217,979.79 : x - Step 2: Convert to fraction form
281,865.26/422,354.43 = 217,979.79/x - Step 3: Cross multiply
281,865.26x = 422,354.43 × 217,979.79 - Step 4: Simplify right side
281,865.26x = 92,064,729,956.97 - Step 5: Solve for x
x = 92,064,729,956.97/281,865.26 - Step 6: Final answer
x = 326,626.74
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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.