Finding the Fourth Proportional to 215,939.10, 323,908.68 and 115,961.76
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Solution
The fourth proportional to 215,939.10, 323,908.68 and 115,961.76 is: 173,942.66
Step by Step Solution
- Step 1: Write the proportion equation
215,939.10 : 323,908.68 = 115,961.76 : x - Step 2: Convert to fraction form
215,939.10/323,908.68 = 115,961.76/x - Step 3: Cross multiply
215,939.10x = 323,908.68 × 115,961.76 - Step 4: Simplify right side
215,939.10x = 37,561,020,612.08 - Step 5: Solve for x
x = 37,561,020,612.08/215,939.10 - Step 6: Final answer
x = 173,942.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.