Finding the Fourth Proportional to 305,883.20, 422,044.96 and 178,486.08
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Solution
The fourth proportional to 305,883.20, 422,044.96 and 178,486.08 is: 246,267.69
Step by Step Solution
- Step 1: Write the proportion equation
305,883.20 : 422,044.96 = 178,486.08 : x - Step 2: Convert to fraction form
305,883.20/422,044.96 = 178,486.08/x - Step 3: Cross multiply
305,883.20x = 422,044.96 × 178,486.08 - Step 4: Simplify right side
305,883.20x = 75,329,150,494.16 - Step 5: Solve for x
x = 75,329,150,494.16/305,883.20 - Step 6: Final answer
x = 246,267.69
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1.5x scale
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.