Finding the Fourth Proportional to 394,183.68, 591,508.80 and 145,040.64
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Solution
The fourth proportional to 394,183.68, 591,508.80 and 145,040.64 is: 217,646.80
Step by Step Solution
- Step 1: Write the proportion equation
394,183.68 : 591,508.80 = 145,040.64 : x - Step 2: Convert to fraction form
394,183.68/591,508.80 = 145,040.64/x - Step 3: Cross multiply
394,183.68x = 591,508.80 × 145,040.64 - Step 4: Simplify right side
394,183.68x = 85,792,814,917.63 - Step 5: Solve for x
x = 85,792,814,917.63/394,183.68 - Step 6: Final answer
x = 217,646.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.