Finding the Fourth Proportional to 299,579.40, 449,369.10 and 276,769.80
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Solution
The fourth proportional to 299,579.40, 449,369.10 and 276,769.80 is: 415,154.70
Step by Step Solution
- Step 1: Write the proportion equation
299,579.40 : 449,369.10 = 276,769.80 : x - Step 2: Convert to fraction form
299,579.40/449,369.10 = 276,769.80/x - Step 3: Cross multiply
299,579.40x = 449,369.10 × 276,769.80 - Step 4: Simplify right side
299,579.40x = 124,371,795,933.18 - Step 5: Solve for x
x = 124,371,795,933.18/299,579.40 - Step 6: Final answer
x = 415,154.70
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1.5x scale
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.