Finding the Fourth Proportional to 394,950.06, 545,028.62 and 213,661.26
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Solution
The fourth proportional to 394,950.06, 545,028.62 and 213,661.26 is: 294,851.20
Step by Step Solution
- Step 1: Write the proportion equation
394,950.06 : 545,028.62 = 213,661.26 : x - Step 2: Convert to fraction form
394,950.06/545,028.62 = 213,661.26/x - Step 3: Cross multiply
394,950.06x = 545,028.62 × 213,661.26 - Step 4: Simplify right side
394,950.06x = 116,451,500,616.96 - Step 5: Solve for x
x = 116,451,500,616.96/394,950.06 - Step 6: Final answer
x = 294,851.20
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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.