Finding the Fourth Proportional to 203,958.40, 305,937.60 and 157,302.40
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Solution
The fourth proportional to 203,958.40, 305,937.60 and 157,302.40 is: 235,953.60
Step by Step Solution
- Step 1: Write the proportion equation
203,958.40 : 305,937.60 = 157,302.40 : x - Step 2: Convert to fraction form
203,958.40/305,937.60 = 157,302.40/x - Step 3: Cross multiply
203,958.40x = 305,937.60 × 157,302.40 - Step 4: Simplify right side
203,958.40x = 48,124,718,730.24 - Step 5: Solve for x
x = 48,124,718,730.24/203,958.40 - Step 6: Final answer
x = 235,953.60
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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.