Finding the Fourth Proportional to 303,129.66, 418,309.92 and 167,163.60
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Solution
The fourth proportional to 303,129.66, 418,309.92 and 167,163.60 is: 230,680.80
Step by Step Solution
- Step 1: Write the proportion equation
303,129.66 : 418,309.92 = 167,163.60 : x - Step 2: Convert to fraction form
303,129.66/418,309.92 = 167,163.60/x - Step 3: Cross multiply
303,129.66x = 418,309.92 × 167,163.60 - Step 4: Simplify right side
303,129.66x = 69,926,192,142.91 - Step 5: Solve for x
x = 69,926,192,142.91/303,129.66 - Step 6: Final answer
x = 230,680.80
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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.