Finding the Fourth Proportional to 211,131.97, 291,383.07 and 120,501.62
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Solution
The fourth proportional to 211,131.97, 291,383.07 and 120,501.62 is: 166,304.20
Step by Step Solution
- Step 1: Write the proportion equation
211,131.97 : 291,383.07 = 120,501.62 : x - Step 2: Convert to fraction form
211,131.97/291,383.07 = 120,501.62/x - Step 3: Cross multiply
211,131.97x = 291,383.07 × 120,501.62 - Step 4: Simplify right side
211,131.97x = 35,112,133,476.31 - Step 5: Solve for x
x = 35,112,133,476.31/211,131.97 - Step 6: Final answer
x = 166,304.20
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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.