Finding the Fourth Proportional to 279,927.30, 419,764.59 and 80,201.97
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Solution
The fourth proportional to 279,927.30, 419,764.59 and 80,201.97 is: 120,266.75
Step by Step Solution
- Step 1: Write the proportion equation
279,927.30 : 419,764.59 = 80,201.97 : x - Step 2: Convert to fraction form
279,927.30/419,764.59 = 80,201.97/x - Step 3: Cross multiply
279,927.30x = 419,764.59 × 80,201.97 - Step 4: Simplify right side
279,927.30x = 33,665,947,054.24 - Step 5: Solve for x
x = 33,665,947,054.24/279,927.30 - Step 6: Final answer
x = 120,266.75
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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.