Finding the Fourth Proportional to 211,435.49, 291,794.26 and 115,942.18
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Solution
The fourth proportional to 211,435.49, 291,794.26 and 115,942.18 is: 160,007.50
Step by Step Solution
- Step 1: Write the proportion equation
211,435.49 : 291,794.26 = 115,942.18 : x - Step 2: Convert to fraction form
211,435.49/291,794.26 = 115,942.18/x - Step 3: Cross multiply
211,435.49x = 291,794.26 × 115,942.18 - Step 4: Simplify right side
211,435.49x = 33,831,262,615.89 - Step 5: Solve for x
x = 33,831,262,615.89/211,435.49 - Step 6: Final answer
x = 160,007.50
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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.