Finding the Fourth Proportional to 289,163.08, 399,070.02 and 161,836.84
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Solution
The fourth proportional to 289,163.08, 399,070.02 and 161,836.84 is: 223,348.81
Step by Step Solution
- Step 1: Write the proportion equation
289,163.08 : 399,070.02 = 161,836.84 : x - Step 2: Convert to fraction form
289,163.08/399,070.02 = 161,836.84/x - Step 3: Cross multiply
289,163.08x = 399,070.02 × 161,836.84 - Step 4: Simplify right side
289,163.08x = 64,584,230,975.54 - Step 5: Solve for x
x = 64,584,230,975.54/289,163.08 - Step 6: Final answer
x = 223,348.81
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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.