Finding the Fourth Proportional to 299,425.80, 449,138.70 and 149,689.20
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Solution
The fourth proportional to 299,425.80, 449,138.70 and 149,689.20 is: 224,533.80
Step by Step Solution
- Step 1: Write the proportion equation
299,425.80 : 449,138.70 = 149,689.20 : x - Step 2: Convert to fraction form
299,425.80/449,138.70 = 149,689.20/x - Step 3: Cross multiply
299,425.80x = 449,138.70 × 149,689.20 - Step 4: Simplify right side
299,425.80x = 67,231,212,692.04 - Step 5: Solve for x
x = 67,231,212,692.04/299,425.80 - Step 6: Final answer
x = 224,533.80
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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.