Finding the Fourth Proportional to 211,943.88, 292,481.64 and 121,299.36
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Solution
The fourth proportional to 211,943.88, 292,481.64 and 121,299.36 is: 167,392.59
Step by Step Solution
- Step 1: Write the proportion equation
211,943.88 : 292,481.64 = 121,299.36 : x - Step 2: Convert to fraction form
211,943.88/292,481.64 = 121,299.36/x - Step 3: Cross multiply
211,943.88x = 292,481.64 × 121,299.36 - Step 4: Simplify right side
211,943.88x = 35,477,835,743.75 - Step 5: Solve for x
x = 35,477,835,743.75/211,943.88 - Step 6: Final answer
x = 167,392.59
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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.