Finding the Fourth Proportional to 203,478.10, 305,217.15 and 180,927.70
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Solution
The fourth proportional to 203,478.10, 305,217.15 and 180,927.70 is: 271,391.55
Step by Step Solution
- Step 1: Write the proportion equation
203,478.10 : 305,217.15 = 180,927.70 : x - Step 2: Convert to fraction form
203,478.10/305,217.15 = 180,927.70/x - Step 3: Cross multiply
203,478.10x = 305,217.15 × 180,927.70 - Step 4: Simplify right side
203,478.10x = 55,222,236,950.06 - Step 5: Solve for x
x = 55,222,236,950.06/203,478.10 - Step 6: Final answer
x = 271,391.55
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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.