Finding the Fourth Proportional to 306,136.80, 459,205.20 and 272,311.20
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Solution
The fourth proportional to 306,136.80, 459,205.20 and 272,311.20 is: 408,466.80
Step by Step Solution
- Step 1: Write the proportion equation
306,136.80 : 459,205.20 = 272,311.20 : x - Step 2: Convert to fraction form
306,136.80/459,205.20 = 272,311.20/x - Step 3: Cross multiply
306,136.80x = 459,205.20 × 272,311.20 - Step 4: Simplify right side
306,136.80x = 125,046,719,058.24 - Step 5: Solve for x
x = 125,046,719,058.24/306,136.80 - Step 6: Final answer
x = 408,466.80
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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.