Finding the Fourth Proportional to 203,467.59, 305,138.99 and 140,691.09
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Solution
The fourth proportional to 203,467.59, 305,138.99 and 140,691.09 is: 210,993.49
Step by Step Solution
- Step 1: Write the proportion equation
203,467.59 : 305,138.99 = 140,691.09 : x - Step 2: Convert to fraction form
203,467.59/305,138.99 = 140,691.09/x - Step 3: Cross multiply
203,467.59x = 305,138.99 × 140,691.09 - Step 4: Simplify right side
203,467.59x = 42,930,336,401.14 - Step 5: Solve for x
x = 42,930,336,401.14/203,467.59 - Step 6: Final answer
x = 210,993.49
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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.