Finding the Fourth Proportional to 279,388.88, 385,392.84 and 202,817.96
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Solution
The fourth proportional to 279,388.88, 385,392.84 and 202,817.96 is: 279,769.87
Step by Step Solution
- Step 1: Write the proportion equation
279,388.88 : 385,392.84 = 202,817.96 : x - Step 2: Convert to fraction form
279,388.88/385,392.84 = 202,817.96/x - Step 3: Cross multiply
279,388.88x = 385,392.84 × 202,817.96 - Step 4: Simplify right side
279,388.88x = 78,164,589,607.41 - Step 5: Solve for x
x = 78,164,589,607.41/279,388.88 - Step 6: Final answer
x = 279,769.87
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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.