Finding the Fourth Proportional to 262,782.23, 394,107.74 and 85,340.03
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Solution
The fourth proportional to 262,782.23, 394,107.74 and 85,340.03 is: 127,988.74
Step by Step Solution
- Step 1: Write the proportion equation
262,782.23 : 394,107.74 = 85,340.03 : x - Step 2: Convert to fraction form
262,782.23/394,107.74 = 85,340.03/x - Step 3: Cross multiply
262,782.23x = 394,107.74 × 85,340.03 - Step 4: Simplify right side
262,782.23x = 33,633,165,928.13 - Step 5: Solve for x
x = 33,633,165,928.13/262,782.23 - Step 6: Final answer
x = 127,988.74
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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.