Finding the Fourth Proportional to 281,463.09, 422,190.85 and 68,232.84
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Solution
The fourth proportional to 281,463.09, 422,190.85 and 68,232.84 is: 102,348.34
Step by Step Solution
- Step 1: Write the proportion equation
281,463.09 : 422,190.85 = 68,232.84 : x - Step 2: Convert to fraction form
281,463.09/422,190.85 = 68,232.84/x - Step 3: Cross multiply
281,463.09x = 422,190.85 × 68,232.84 - Step 4: Simplify right side
281,463.09x = 28,807,281,594.41 - Step 5: Solve for x
x = 28,807,281,594.41/281,463.09 - Step 6: Final answer
x = 102,348.34
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1.5x scale
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.