Finding the Fourth Proportional to 289,292.05, 434,007.36 and 120,718.60
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Solution
The fourth proportional to 289,292.05, 434,007.36 and 120,718.60 is: 181,106.81
Step by Step Solution
- Step 1: Write the proportion equation
289,292.05 : 434,007.36 = 120,718.60 : x - Step 2: Convert to fraction form
289,292.05/434,007.36 = 120,718.60/x - Step 3: Cross multiply
289,292.05x = 434,007.36 × 120,718.60 - Step 4: Simplify right side
289,292.05x = 52,392,761,905.65 - Step 5: Solve for x
x = 52,392,761,905.65/289,292.05 - Step 6: Final answer
x = 181,106.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.