Finding the Fourth Proportional to 311,341.92, 467,025.18 and 86,721.99
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Solution
The fourth proportional to 311,341.92, 467,025.18 and 86,721.99 is: 130,086.41
Step by Step Solution
- Step 1: Write the proportion equation
311,341.92 : 467,025.18 = 86,721.99 : x - Step 2: Convert to fraction form
311,341.92/467,025.18 = 86,721.99/x - Step 3: Cross multiply
311,341.92x = 467,025.18 × 86,721.99 - Step 4: Simplify right side
311,341.92x = 40,501,352,989.71 - Step 5: Solve for x
x = 40,501,352,989.71/311,341.92 - Step 6: Final answer
x = 130,086.41
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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.