Finding the Fourth Proportional to 280,853.60, 420,405.60 and 202,121.60
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Solution
The fourth proportional to 280,853.60, 420,405.60 and 202,121.60 is: 302,552.83
Step by Step Solution
- Step 1: Write the proportion equation
280,853.60 : 420,405.60 = 202,121.60 : x - Step 2: Convert to fraction form
280,853.60/420,405.60 = 202,121.60/x - Step 3: Cross multiply
280,853.60x = 420,405.60 × 202,121.60 - Step 4: Simplify right side
280,853.60x = 84,973,052,520.96 - Step 5: Solve for x
x = 84,973,052,520.96/280,853.60 - Step 6: Final answer
x = 302,552.83
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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.