Finding the Fourth Proportional to 279,414.11, 419,183.67 and 101,921.13
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Solution
The fourth proportional to 279,414.11, 419,183.67 and 101,921.13 is: 152,904.49
Step by Step Solution
- Step 1: Write the proportion equation
279,414.11 : 419,183.67 = 101,921.13 : x - Step 2: Convert to fraction form
279,414.11/419,183.67 = 101,921.13/x - Step 3: Cross multiply
279,414.11x = 419,183.67 × 101,921.13 - Step 4: Simplify right side
279,414.11x = 42,723,673,323.95 - Step 5: Solve for x
x = 42,723,673,323.95/279,414.11 - Step 6: Final answer
x = 152,904.49
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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.