Finding the Fourth Proportional to 203,970.21, 281,470.84 and 113,331.79
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Solution
The fourth proportional to 203,970.21, 281,470.84 and 113,331.79 is: 156,393.40
Step by Step Solution
- Step 1: Write the proportion equation
203,970.21 : 281,470.84 = 113,331.79 : x - Step 2: Convert to fraction form
203,970.21/281,470.84 = 113,331.79/x - Step 3: Cross multiply
203,970.21x = 281,470.84 × 113,331.79 - Step 4: Simplify right side
203,970.21x = 31,899,594,130.00 - Step 5: Solve for x
x = 31,899,594,130.00/203,970.21 - Step 6: Final answer
x = 156,393.40
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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.