Finding the Fourth Proportional to 211,043.26, 291,239.64 and 115,549.93
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Solution
The fourth proportional to 211,043.26, 291,239.64 and 115,549.93 is: 159,458.87
Step by Step Solution
- Step 1: Write the proportion equation
211,043.26 : 291,239.64 = 115,549.93 : x - Step 2: Convert to fraction form
211,043.26/291,239.64 = 115,549.93/x - Step 3: Cross multiply
211,043.26x = 291,239.64 × 115,549.93 - Step 4: Simplify right side
211,043.26x = 33,652,720,015.23 - Step 5: Solve for x
x = 33,652,720,015.23/211,043.26 - Step 6: Final answer
x = 159,458.87
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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.