Finding the Fourth Proportional to 279,015.64, 385,173.84 and 178,471.96
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Solution
The fourth proportional to 279,015.64, 385,173.84 and 178,471.96 is: 246,375.90
Step by Step Solution
- Step 1: Write the proportion equation
279,015.64 : 385,173.84 = 178,471.96 : x - Step 2: Convert to fraction form
279,015.64/385,173.84 = 178,471.96/x - Step 3: Cross multiply
279,015.64x = 385,173.84 × 178,471.96 - Step 4: Simplify right side
279,015.64x = 68,742,730,165.53 - Step 5: Solve for x
x = 68,742,730,165.53/279,015.64 - Step 6: Final answer
x = 246,375.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.