Finding the Fourth Proportional to 263,115.30, 394,737.76 and 76,145.70
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Solution
The fourth proportional to 263,115.30, 394,737.76 and 76,145.70 is: 114,237.31
Step by Step Solution
- Step 1: Write the proportion equation
263,115.30 : 394,737.76 = 76,145.70 : x - Step 2: Convert to fraction form
263,115.30/394,737.76 = 76,145.70/x - Step 3: Cross multiply
263,115.30x = 394,737.76 × 76,145.70 - Step 4: Simplify right side
263,115.30x = 30,057,583,051.63 - Step 5: Solve for x
x = 30,057,583,051.63/263,115.30 - Step 6: Final answer
x = 114,237.31
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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.