Finding the Fourth Proportional to 203,634.40, 281,161.20 and 135,811.52
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Solution
The fourth proportional to 203,634.40, 281,161.20 and 135,811.52 is: 187,517.09
Step by Step Solution
- Step 1: Write the proportion equation
203,634.40 : 281,161.20 = 135,811.52 : x - Step 2: Convert to fraction form
203,634.40/281,161.20 = 135,811.52/x - Step 3: Cross multiply
203,634.40x = 281,161.20 × 135,811.52 - Step 4: Simplify right side
203,634.40x = 38,184,929,937.02 - Step 5: Solve for x
x = 38,184,929,937.02/203,634.40 - Step 6: Final answer
x = 187,517.09
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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.