Finding the Fourth Proportional to 279,687.96, 419,198.76 and 161,113.68
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Solution
The fourth proportional to 279,687.96, 419,198.76 and 161,113.68 is: 241,478.59
Step by Step Solution
- Step 1: Write the proportion equation
279,687.96 : 419,198.76 = 161,113.68 : x - Step 2: Convert to fraction form
279,687.96/419,198.76 = 161,113.68/x - Step 3: Cross multiply
279,687.96x = 419,198.76 × 161,113.68 - Step 4: Simplify right side
279,687.96x = 67,538,654,875.04 - Step 5: Solve for x
x = 67,538,654,875.04/279,687.96 - Step 6: Final answer
x = 241,478.59
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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.