Finding the Fourth Proportional to 211,382.80, 291,708.18 and 115,887.44
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Solution
The fourth proportional to 211,382.80, 291,708.18 and 115,887.44 is: 159,924.62
Step by Step Solution
- Step 1: Write the proportion equation
211,382.80 : 291,708.18 = 115,887.44 : x - Step 2: Convert to fraction form
211,382.80/291,708.18 = 115,887.44/x - Step 3: Cross multiply
211,382.80x = 291,708.18 × 115,887.44 - Step 4: Simplify right side
211,382.80x = 33,805,314,207.26 - Step 5: Solve for x
x = 33,805,314,207.26/211,382.80 - Step 6: Final answer
x = 159,924.62
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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.