Finding the Fourth Proportional to 263,282.28, 394,681.12 and 143,163.74
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Solution
The fourth proportional to 263,282.28, 394,681.12 and 143,163.74 is: 214,613.86
Step by Step Solution
- Step 1: Write the proportion equation
263,282.28 : 394,681.12 = 143,163.74 : x - Step 2: Convert to fraction form
263,282.28/394,681.12 = 143,163.74/x - Step 3: Cross multiply
263,282.28x = 394,681.12 × 143,163.74 - Step 4: Simplify right side
263,282.28x = 56,504,025,246.59 - Step 5: Solve for x
x = 56,504,025,246.59/263,282.28 - Step 6: Final answer
x = 214,613.86
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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.