Finding the Fourth Proportional to 400,311.28, 552,883.08 and 272,765.44
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Solution
The fourth proportional to 400,311.28, 552,883.08 and 272,765.44 is: 376,725.32
Step by Step Solution
- Step 1: Write the proportion equation
400,311.28 : 552,883.08 = 272,765.44 : x - Step 2: Convert to fraction form
400,311.28/552,883.08 = 272,765.44/x - Step 3: Cross multiply
400,311.28x = 552,883.08 × 272,765.44 - Step 4: Simplify right side
400,311.28x = 150,807,396,584.76 - Step 5: Solve for x
x = 150,807,396,584.76/400,311.28 - Step 6: Final answer
x = 376,725.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.