Finding the Fourth Proportional to 280,241.34, 420,432.42 and 80,562.09
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Solution
The fourth proportional to 280,241.34, 420,432.42 and 80,562.09 is: 120,863.38
Step by Step Solution
- Step 1: Write the proportion equation
280,241.34 : 420,432.42 = 80,562.09 : x - Step 2: Convert to fraction form
280,241.34/420,432.42 = 80,562.09/x - Step 3: Cross multiply
280,241.34x = 420,432.42 × 80,562.09 - Step 4: Simplify right side
280,241.34x = 33,870,914,458.96 - Step 5: Solve for x
x = 33,870,914,458.96/280,241.34 - Step 6: Final answer
x = 120,863.38
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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.