Finding the Fourth Proportional to 203,421.42, 280,730.79 and 116,214.21
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Solution
The fourth proportional to 203,421.42, 280,730.79 and 116,214.21 is: 160,380.88
Step by Step Solution
- Step 1: Write the proportion equation
203,421.42 : 280,730.79 = 116,214.21 : x - Step 2: Convert to fraction form
203,421.42/280,730.79 = 116,214.21/x - Step 3: Cross multiply
203,421.42x = 280,730.79 × 116,214.21 - Step 4: Simplify right side
203,421.42x = 32,624,906,982.53 - Step 5: Solve for x
x = 32,624,906,982.53/203,421.42 - Step 6: Final answer
x = 160,380.88
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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.