Finding the Fourth Proportional to 279,406.07, 420,975.97 and 252,785.84
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Solution
The fourth proportional to 279,406.07, 420,975.97 and 252,785.84 is: 380,867.75
Step by Step Solution
- Step 1: Write the proportion equation
279,406.07 : 420,975.97 = 252,785.84 : x - Step 2: Convert to fraction form
279,406.07/420,975.97 = 252,785.84/x - Step 3: Cross multiply
279,406.07x = 420,975.97 × 252,785.84 - Step 4: Simplify right side
279,406.07x = 106,416,761,933.39 - Step 5: Solve for x
x = 106,416,761,933.39/279,406.07 - Step 6: Final answer
x = 380,867.75
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.