Finding the Fourth Proportional to 211,830.13, 292,324.39 and 115,033.05
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Solution
The fourth proportional to 211,830.13, 292,324.39 and 115,033.05 is: 158,744.97
Step by Step Solution
- Step 1: Write the proportion equation
211,830.13 : 292,324.39 = 115,033.05 : x - Step 2: Convert to fraction form
211,830.13/292,324.39 = 115,033.05/x - Step 3: Cross multiply
211,830.13x = 292,324.39 × 115,033.05 - Step 4: Simplify right side
211,830.13x = 33,626,966,171.09 - Step 5: Solve for x
x = 33,626,966,171.09/211,830.13 - Step 6: Final answer
x = 158,744.97
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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.