Finding the Fourth Proportional to 311,511.75, 467,260.91 and 86,866.20
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Solution
The fourth proportional to 311,511.75, 467,260.91 and 86,866.20 is: 130,297.43
Step by Step Solution
- Step 1: Write the proportion equation
311,511.75 : 467,260.91 = 86,866.20 : x - Step 2: Convert to fraction form
311,511.75/467,260.91 = 86,866.20/x - Step 3: Cross multiply
311,511.75x = 467,260.91 × 86,866.20 - Step 4: Simplify right side
311,511.75x = 40,589,179,660.24 - Step 5: Solve for x
x = 40,589,179,660.24/311,511.75 - Step 6: Final answer
x = 130,297.43
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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.