Finding the Fourth Proportional to 211,371.93, 291,689.91 and 115,879.28
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Solution
The fourth proportional to 211,371.93, 291,689.91 and 115,879.28 is: 159,911.56
Step by Step Solution
- Step 1: Write the proportion equation
211,371.93 : 291,689.91 = 115,879.28 : x - Step 2: Convert to fraction form
211,371.93/291,689.91 = 115,879.28/x - Step 3: Cross multiply
211,371.93x = 291,689.91 × 115,879.28 - Step 4: Simplify right side
211,371.93x = 33,800,815,295.62 - Step 5: Solve for x
x = 33,800,815,295.62/211,371.93 - Step 6: Final answer
x = 159,911.56
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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.