Finding the Fourth Proportional to 203,432.70, 305,149.05 and 170,190.30
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Solution
The fourth proportional to 203,432.70, 305,149.05 and 170,190.30 is: 255,285.45
Step by Step Solution
- Step 1: Write the proportion equation
203,432.70 : 305,149.05 = 170,190.30 : x - Step 2: Convert to fraction form
203,432.70/305,149.05 = 170,190.30/x - Step 3: Cross multiply
203,432.70x = 305,149.05 × 170,190.30 - Step 4: Simplify right side
203,432.70x = 51,933,408,364.22 - Step 5: Solve for x
x = 51,933,408,364.22/203,432.70 - Step 6: Final answer
x = 255,285.45
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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.