Finding the Fourth Proportional to 279,876.57, 419,515.50 and 159,674.49
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Solution
The fourth proportional to 279,876.57, 419,515.50 and 159,674.49 is: 239,340.95
Step by Step Solution
- Step 1: Write the proportion equation
279,876.57 : 419,515.50 = 159,674.49 : x - Step 2: Convert to fraction form
279,876.57/419,515.50 = 159,674.49/x - Step 3: Cross multiply
279,876.57x = 419,515.50 × 159,674.49 - Step 4: Simplify right side
279,876.57x = 66,985,924,108.37 - Step 5: Solve for x
x = 66,985,924,108.37/279,876.57 - Step 6: Final answer
x = 239,340.95
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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.