Finding the Fourth Proportional to 263,204.36, 394,981.71 and 143,291.56
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Solution
The fourth proportional to 263,204.36, 394,981.71 and 143,291.56 is: 215,032.70
Step by Step Solution
- Step 1: Write the proportion equation
263,204.36 : 394,981.71 = 143,291.56 : x - Step 2: Convert to fraction form
263,204.36/394,981.71 = 143,291.56/x - Step 3: Cross multiply
263,204.36x = 394,981.71 × 143,291.56 - Step 4: Simplify right side
263,204.36x = 56,597,544,409.91 - Step 5: Solve for x
x = 56,597,544,409.91/263,204.36 - Step 6: Final answer
x = 215,032.70
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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.