Finding the Fourth Proportional to 260,160.43, 389,930.03 and 133,861.18
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Solution
The fourth proportional to 260,160.43, 389,930.03 and 133,861.18 is: 200,631.95
Step by Step Solution
- Step 1: Write the proportion equation
260,160.43 : 389,930.03 = 133,861.18 : x - Step 2: Convert to fraction form
260,160.43/389,930.03 = 133,861.18/x - Step 3: Cross multiply
260,160.43x = 389,930.03 × 133,861.18 - Step 4: Simplify right side
260,160.43x = 52,196,493,933.24 - Step 5: Solve for x
x = 52,196,493,933.24/260,160.43 - Step 6: Final answer
x = 200,631.95
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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.