Finding the Fourth Proportional to 190,711.09, 263,223.13 and 149,235.94
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Solution
The fourth proportional to 190,711.09, 263,223.13 and 149,235.94 is: 205,978.33
Step by Step Solution
- Step 1: Write the proportion equation
190,711.09 : 263,223.13 = 149,235.94 : x - Step 2: Convert to fraction form
190,711.09/263,223.13 = 149,235.94/x - Step 3: Cross multiply
190,711.09x = 263,223.13 × 149,235.94 - Step 4: Simplify right side
190,711.09x = 39,282,351,235.29 - Step 5: Solve for x
x = 39,282,351,235.29/190,711.09 - Step 6: Final answer
x = 205,978.33
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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.