Finding the Fourth Proportional to 268,883.12, 403,321.94 and 69,202.73
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Solution
The fourth proportional to 268,883.12, 403,321.94 and 69,202.73 is: 103,803.39
Step by Step Solution
- Step 1: Write the proportion equation
268,883.12 : 403,321.94 = 69,202.73 : x - Step 2: Convert to fraction form
268,883.12/403,321.94 = 69,202.73/x - Step 3: Cross multiply
268,883.12x = 403,321.94 × 69,202.73 - Step 4: Simplify right side
268,883.12x = 27,910,979,979.19 - Step 5: Solve for x
x = 27,910,979,979.19/268,883.12 - Step 6: Final answer
x = 103,803.39
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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.