Finding the Fourth Proportional to 279,489.76, 419,299.62 and 79,812.88
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Solution
The fourth proportional to 279,489.76, 419,299.62 and 79,812.88 is: 119,737.88
Step by Step Solution
- Step 1: Write the proportion equation
279,489.76 : 419,299.62 = 79,812.88 : x - Step 2: Convert to fraction form
279,489.76/419,299.62 = 79,812.88/x - Step 3: Cross multiply
279,489.76x = 419,299.62 × 79,812.88 - Step 4: Simplify right side
279,489.76x = 33,465,510,255.11 - Step 5: Solve for x
x = 33,465,510,255.11/279,489.76 - Step 6: Final answer
x = 119,737.88
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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.