Finding the Fourth Proportional to 311,896.36, 430,027.02 and 260,287.84
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Solution
The fourth proportional to 311,896.36, 430,027.02 and 260,287.84 is: 358,871.79
Step by Step Solution
- Step 1: Write the proportion equation
311,896.36 : 430,027.02 = 260,287.84 : x - Step 2: Convert to fraction form
311,896.36/430,027.02 = 260,287.84/x - Step 3: Cross multiply
311,896.36x = 430,027.02 × 260,287.84 - Step 4: Simplify right side
311,896.36x = 111,930,804,177.44 - Step 5: Solve for x
x = 111,930,804,177.44/311,896.36 - Step 6: Final answer
x = 358,871.79
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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.