Finding the Fourth Proportional to 279,566.05, 419,053.78 and 137,213.28
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Solution
The fourth proportional to 279,566.05, 419,053.78 and 137,213.28 is: 205,674.99
Step by Step Solution
- Step 1: Write the proportion equation
279,566.05 : 419,053.78 = 137,213.28 : x - Step 2: Convert to fraction form
279,566.05/419,053.78 = 137,213.28/x - Step 3: Cross multiply
279,566.05x = 419,053.78 × 137,213.28 - Step 4: Simplify right side
279,566.05x = 57,499,743,650.20 - Step 5: Solve for x
x = 57,499,743,650.20/279,566.05 - Step 6: Final answer
x = 205,674.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.