Finding the Fourth Proportional to 420,131.70, 579,846.36 and 248,067.96
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Solution
The fourth proportional to 420,131.70, 579,846.36 and 248,067.96 is: 342,371.94
Step by Step Solution
- Step 1: Write the proportion equation
420,131.70 : 579,846.36 = 248,067.96 : x - Step 2: Convert to fraction form
420,131.70/579,846.36 = 248,067.96/x - Step 3: Cross multiply
420,131.70x = 579,846.36 × 248,067.96 - Step 4: Simplify right side
420,131.70x = 143,841,303,638.63 - Step 5: Solve for x
x = 143,841,303,638.63/420,131.70 - Step 6: Final answer
x = 342,371.94
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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.