Finding the Fourth Proportional to 211,872.63, 292,311.81 and 121,195.56
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Solution
The fourth proportional to 211,872.63, 292,311.81 and 121,195.56 is: 167,208.45
Step by Step Solution
- Step 1: Write the proportion equation
211,872.63 : 292,311.81 = 121,195.56 : x - Step 2: Convert to fraction form
211,872.63/292,311.81 = 121,195.56/x - Step 3: Cross multiply
211,872.63x = 292,311.81 × 121,195.56 - Step 4: Simplify right side
211,872.63x = 35,426,893,507.56 - Step 5: Solve for x
x = 35,426,893,507.56/211,872.63 - Step 6: Final answer
x = 167,208.45
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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.