Finding the Fourth Proportional to 220,235.43, 303,897.80 and 134,163.18
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Solution
The fourth proportional to 220,235.43, 303,897.80 and 134,163.18 is: 185,128.68
Step by Step Solution
- Step 1: Write the proportion equation
220,235.43 : 303,897.80 = 134,163.18 : x - Step 2: Convert to fraction form
220,235.43/303,897.80 = 134,163.18/x - Step 3: Cross multiply
220,235.43x = 303,897.80 × 134,163.18 - Step 4: Simplify right side
220,235.43x = 40,771,895,243.00 - Step 5: Solve for x
x = 40,771,895,243.00/220,235.43 - Step 6: Final answer
x = 185,128.68
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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.