Finding the Fourth Proportional to 283,911.36, 426,162.42 and 209,115.96
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Solution
The fourth proportional to 283,911.36, 426,162.42 and 209,115.96 is: 313,891.50
Step by Step Solution
- Step 1: Write the proportion equation
283,911.36 : 426,162.42 = 209,115.96 : x - Step 2: Convert to fraction form
283,911.36/426,162.42 = 209,115.96/x - Step 3: Cross multiply
283,911.36x = 426,162.42 × 209,115.96 - Step 4: Simplify right side
283,911.36x = 89,117,363,574.22 - Step 5: Solve for x
x = 89,117,363,574.22/283,911.36 - Step 6: Final answer
x = 313,891.50
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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.