Finding the Fourth Proportional to 256,514.24, 353,988.78 and 143,336.99
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Solution
The fourth proportional to 256,514.24, 353,988.78 and 143,336.99 is: 197,804.56
Step by Step Solution
- Step 1: Write the proportion equation
256,514.24 : 353,988.78 = 143,336.99 : x - Step 2: Convert to fraction form
256,514.24/353,988.78 = 143,336.99/x - Step 3: Cross multiply
256,514.24x = 353,988.78 × 143,336.99 - Step 4: Simplify right side
256,514.24x = 50,739,686,218.97 - Step 5: Solve for x
x = 50,739,686,218.97/256,514.24 - Step 6: Final answer
x = 197,804.56
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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.