Finding the Fourth Proportional to 291,745.40, 437,618.10 and 268,935.80
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Solution
The fourth proportional to 291,745.40, 437,618.10 and 268,935.80 is: 403,403.70
Step by Step Solution
- Step 1: Write the proportion equation
291,745.40 : 437,618.10 = 268,935.80 : x - Step 2: Convert to fraction form
291,745.40/437,618.10 = 268,935.80/x - Step 3: Cross multiply
291,745.40x = 437,618.10 × 268,935.80 - Step 4: Simplify right side
291,745.40x = 117,691,173,817.98 - Step 5: Solve for x
x = 117,691,173,817.98/291,745.40 - Step 6: Final answer
x = 403,403.70
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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.