Finding the Fourth Proportional to 274,321.40, 411,482.10 and 272,571.80
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Solution
The fourth proportional to 274,321.40, 411,482.10 and 272,571.80 is: 408,857.70
Step by Step Solution
- Step 1: Write the proportion equation
274,321.40 : 411,482.10 = 272,571.80 : x - Step 2: Convert to fraction form
274,321.40/411,482.10 = 272,571.80/x - Step 3: Cross multiply
274,321.40x = 411,482.10 × 272,571.80 - Step 4: Simplify right side
274,321.40x = 112,158,416,664.78 - Step 5: Solve for x
x = 112,158,416,664.78/274,321.40 - Step 6: Final answer
x = 408,857.70
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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.