Finding the Fourth Proportional to 190,163.49, 262,438.95 and 105,286.02
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Solution
The fourth proportional to 190,163.49, 262,438.95 and 105,286.02 is: 145,302.09
Step by Step Solution
- Step 1: Write the proportion equation
190,163.49 : 262,438.95 = 105,286.02 : x - Step 2: Convert to fraction form
190,163.49/262,438.95 = 105,286.02/x - Step 3: Cross multiply
190,163.49x = 262,438.95 × 105,286.02 - Step 4: Simplify right side
190,163.49x = 27,631,152,538.48 - Step 5: Solve for x
x = 27,631,152,538.48/190,163.49 - Step 6: Final answer
x = 145,302.09
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1.5x scale
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.