Finding the Fourth Proportional to 203,976.36, 281,487.15 and 113,340.74
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Solution
The fourth proportional to 203,976.36, 281,487.15 and 113,340.74 is: 156,410.09
Step by Step Solution
- Step 1: Write the proportion equation
203,976.36 : 281,487.15 = 113,340.74 : x - Step 2: Convert to fraction form
203,976.36/281,487.15 = 113,340.74/x - Step 3: Cross multiply
203,976.36x = 281,487.15 × 113,340.74 - Step 4: Simplify right side
203,976.36x = 31,903,960,474.06 - Step 5: Solve for x
x = 31,903,960,474.06/203,976.36 - Step 6: Final answer
x = 156,410.09
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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.