Finding the Fourth Proportional to 211,116.44, 291,268.41 and 120,407.21
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Solution
The fourth proportional to 211,116.44, 291,268.41 and 120,407.21 is: 166,120.73
Step by Step Solution
- Step 1: Write the proportion equation
211,116.44 : 291,268.41 = 120,407.21 : x - Step 2: Convert to fraction form
211,116.44/291,268.41 = 120,407.21/x - Step 3: Cross multiply
211,116.44x = 291,268.41 × 120,407.21 - Step 4: Simplify right side
211,116.44x = 35,070,816,609.24 - Step 5: Solve for x
x = 35,070,816,609.24/211,116.44 - Step 6: Final answer
x = 166,120.73
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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.