Finding the Fourth Proportional to 268,879.21, 403,568.04 and 135,852.96
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Solution
The fourth proportional to 268,879.21, 403,568.04 and 135,852.96 is: 203,905.36
Step by Step Solution
- Step 1: Write the proportion equation
268,879.21 : 403,568.04 = 135,852.96 : x - Step 2: Convert to fraction form
268,879.21/403,568.04 = 135,852.96/x - Step 3: Cross multiply
268,879.21x = 403,568.04 × 135,852.96 - Step 4: Simplify right side
268,879.21x = 54,825,913,135.03 - Step 5: Solve for x
x = 54,825,913,135.03/268,879.21 - Step 6: Final answer
x = 203,905.36
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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.