Finding the Fourth Proportional to 279,034.21, 385,080.37 and 158,177.84
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Solution
The fourth proportional to 279,034.21, 385,080.37 and 158,177.84 is: 218,292.88
Step by Step Solution
- Step 1: Write the proportion equation
279,034.21 : 385,080.37 = 158,177.84 : x - Step 2: Convert to fraction form
279,034.21/385,080.37 = 158,177.84/x - Step 3: Cross multiply
279,034.21x = 385,080.37 × 158,177.84 - Step 4: Simplify right side
279,034.21x = 60,911,181,720.26 - Step 5: Solve for x
x = 60,911,181,720.26/279,034.21 - Step 6: Final answer
x = 218,292.88
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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.