Finding the Fourth Proportional to 285,977.73, 394,636.04 and 156,912.99
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Solution
The fourth proportional to 285,977.73, 394,636.04 and 156,912.99 is: 216,532.67
Step by Step Solution
- Step 1: Write the proportion equation
285,977.73 : 394,636.04 = 156,912.99 : x - Step 2: Convert to fraction form
285,977.73/394,636.04 = 156,912.99/x - Step 3: Cross multiply
285,977.73x = 394,636.04 × 156,912.99 - Step 4: Simplify right side
285,977.73x = 61,923,521,693.48 - Step 5: Solve for x
x = 61,923,521,693.48/285,977.73 - Step 6: Final answer
x = 216,532.67
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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.