Finding the Fourth Proportional to 203,528.58, 280,847.70 and 112,860.42
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Solution
The fourth proportional to 203,528.58, 280,847.70 and 112,860.42 is: 155,735.32
Step by Step Solution
- Step 1: Write the proportion equation
203,528.58 : 280,847.70 = 112,860.42 : x - Step 2: Convert to fraction form
203,528.58/280,847.70 = 112,860.42/x - Step 3: Cross multiply
203,528.58x = 280,847.70 × 112,860.42 - Step 4: Simplify right side
203,528.58x = 31,696,589,378.03 - Step 5: Solve for x
x = 31,696,589,378.03/203,528.58 - Step 6: Final answer
x = 155,735.32
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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.