Finding the Fourth Proportional to 279,190.72, 385,286.18 and 151,866.62
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Solution
The fourth proportional to 279,190.72, 385,286.18 and 151,866.62 is: 209,577.56
Step by Step Solution
- Step 1: Write the proportion equation
279,190.72 : 385,286.18 = 151,866.62 : x - Step 2: Convert to fraction form
279,190.72/385,286.18 = 151,866.62/x - Step 3: Cross multiply
279,190.72x = 385,286.18 × 151,866.62 - Step 4: Simplify right side
279,190.72x = 58,512,109,889.31 - Step 5: Solve for x
x = 58,512,109,889.31/279,190.72 - Step 6: Final answer
x = 209,577.56
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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.