Finding the Fourth Proportional to 235,446.60, 324,912.52 and 128,015.68
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Solution
The fourth proportional to 235,446.60, 324,912.52 and 128,015.68 is: 176,659.58
Step by Step Solution
- Step 1: Write the proportion equation
235,446.60 : 324,912.52 = 128,015.68 : x - Step 2: Convert to fraction form
235,446.60/324,912.52 = 128,015.68/x - Step 3: Cross multiply
235,446.60x = 324,912.52 × 128,015.68 - Step 4: Simplify right side
235,446.60x = 41,593,897,188.31 - Step 5: Solve for x
x = 41,593,897,188.31/235,446.60 - Step 6: Final answer
x = 176,659.58
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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.