Finding the Fourth Proportional to 272,528.99, 408,797.13 and 85,540.49
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Solution
The fourth proportional to 272,528.99, 408,797.13 and 85,540.49 is: 128,311.88
Step by Step Solution
- Step 1: Write the proportion equation
272,528.99 : 408,797.13 = 85,540.49 : x - Step 2: Convert to fraction form
272,528.99/408,797.13 = 85,540.49/x - Step 3: Cross multiply
272,528.99x = 408,797.13 × 85,540.49 - Step 4: Simplify right side
272,528.99x = 34,968,706,810.79 - Step 5: Solve for x
x = 34,968,706,810.79/272,528.99 - Step 6: Final answer
x = 128,311.88
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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.