Finding the Fourth Proportional to 642,118.11, 963,315.20 and 186,717.26
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Solution
The fourth proportional to 642,118.11, 963,315.20 and 186,717.26 is: 280,116.02
Step by Step Solution
- Step 1: Write the proportion equation
642,118.11 : 963,315.20 = 186,717.26 : x - Step 2: Convert to fraction form
642,118.11/963,315.20 = 186,717.26/x - Step 3: Cross multiply
642,118.11x = 963,315.20 × 186,717.26 - Step 4: Simplify right side
642,118.11x = 179,867,568,910.19 - Step 5: Solve for x
x = 179,867,568,910.19/642,118.11 - Step 6: Final answer
x = 280,116.02
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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.