Finding the Fourth Proportional to 196,840.44, 271,540.08 and 128,971.08
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Solution
The fourth proportional to 196,840.44, 271,540.08 and 128,971.08 is: 177,914.75
Step by Step Solution
- Step 1: Write the proportion equation
196,840.44 : 271,540.08 = 128,971.08 : x - Step 2: Convert to fraction form
196,840.44/271,540.08 = 128,971.08/x - Step 3: Cross multiply
196,840.44x = 271,540.08 × 128,971.08 - Step 4: Simplify right side
196,840.44x = 35,020,817,380.89 - Step 5: Solve for x
x = 35,020,817,380.89/196,840.44 - Step 6: Final answer
x = 177,914.75
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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.