Finding the Fourth Proportional to 299,487.70, 449,231.55 and 159,519.70
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Solution
The fourth proportional to 299,487.70, 449,231.55 and 159,519.70 is: 239,279.55
Step by Step Solution
- Step 1: Write the proportion equation
299,487.70 : 449,231.55 = 159,519.70 : x - Step 2: Convert to fraction form
299,487.70/449,231.55 = 159,519.70/x - Step 3: Cross multiply
299,487.70x = 449,231.55 × 159,519.70 - Step 4: Simplify right side
299,487.70x = 71,661,282,086.54 - Step 5: Solve for x
x = 71,661,282,086.54/299,487.70 - Step 6: Final answer
x = 239,279.55
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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.