Finding the Fourth Proportional to 213,408.92, 294,565.68 and 140,864.76
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Solution
The fourth proportional to 213,408.92, 294,565.68 and 140,864.76 is: 194,433.88
Step by Step Solution
- Step 1: Write the proportion equation
213,408.92 : 294,565.68 = 140,864.76 : x - Step 2: Convert to fraction form
213,408.92/294,565.68 = 140,864.76/x - Step 3: Cross multiply
213,408.92x = 294,565.68 × 140,864.76 - Step 4: Simplify right side
213,408.92x = 41,493,923,817.44 - Step 5: Solve for x
x = 41,493,923,817.44/213,408.92 - Step 6: Final answer
x = 194,433.88
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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.