Finding the Fourth Proportional to 285,651.59, 394,324.76 and 199,947.17
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Solution
The fourth proportional to 285,651.59, 394,324.76 and 199,947.17 is: 276,014.99
Step by Step Solution
- Step 1: Write the proportion equation
285,651.59 : 394,324.76 = 199,947.17 : x - Step 2: Convert to fraction form
285,651.59/394,324.76 = 199,947.17/x - Step 3: Cross multiply
285,651.59x = 394,324.76 × 199,947.17 - Step 4: Simplify right side
285,651.59x = 78,844,119,822.93 - Step 5: Solve for x
x = 78,844,119,822.93/285,651.59 - Step 6: Final answer
x = 276,014.99
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1.5x scale
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.