Finding the Fourth Proportional to 279,121.26, 385,179.11 and 158,273.58
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Solution
The fourth proportional to 279,121.26, 385,179.11 and 158,273.58 is: 218,412.88
Step by Step Solution
- Step 1: Write the proportion equation
279,121.26 : 385,179.11 = 158,273.58 : x - Step 2: Convert to fraction form
279,121.26/385,179.11 = 158,273.58/x - Step 3: Cross multiply
279,121.26x = 385,179.11 × 158,273.58 - Step 4: Simplify right side
279,121.26x = 60,963,678,817.78 - Step 5: Solve for x
x = 60,963,678,817.78/279,121.26 - Step 6: Final answer
x = 218,412.88
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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.