Finding the Fourth Proportional to 211,147.13, 291,383.12 and 115,655.42
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Solution
The fourth proportional to 211,147.13, 291,383.12 and 115,655.42 is: 159,604.52
Step by Step Solution
- Step 1: Write the proportion equation
211,147.13 : 291,383.12 = 115,655.42 : x - Step 2: Convert to fraction form
211,147.13/291,383.12 = 115,655.42/x - Step 3: Cross multiply
211,147.13x = 291,383.12 × 115,655.42 - Step 4: Simplify right side
211,147.13x = 33,700,036,546.23 - Step 5: Solve for x
x = 33,700,036,546.23/211,147.13 - Step 6: Final answer
x = 159,604.52
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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.