Finding the Fourth Proportional to 279,105.25, 418,545.13 and 108,236.99
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Solution
The fourth proportional to 279,105.25, 418,545.13 and 108,236.99 is: 162,311.76
Step by Step Solution
- Step 1: Write the proportion equation
279,105.25 : 418,545.13 = 108,236.99 : x - Step 2: Convert to fraction form
279,105.25/418,545.13 = 108,236.99/x - Step 3: Cross multiply
279,105.25x = 418,545.13 × 108,236.99 - Step 4: Simplify right side
279,105.25x = 45,302,065,050.36 - Step 5: Solve for x
x = 45,302,065,050.36/279,105.25 - Step 6: Final answer
x = 162,311.76
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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.