Finding the Fourth Proportional to 211,067.96, 291,260.94 and 115,575.80
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Solution
The fourth proportional to 211,067.96, 291,260.94 and 115,575.80 is: 159,487.57
Step by Step Solution
- Step 1: Write the proportion equation
211,067.96 : 291,260.94 = 115,575.80 : x - Step 2: Convert to fraction form
211,067.96/291,260.94 = 115,575.80/x - Step 3: Cross multiply
211,067.96x = 291,260.94 × 115,575.80 - Step 4: Simplify right side
211,067.96x = 33,662,716,149.25 - Step 5: Solve for x
x = 33,662,716,149.25/211,067.96 - Step 6: Final answer
x = 159,487.57
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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.