Finding the Fourth Proportional to 235,679.41, 325,236.98 and 128,249.41
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Solution
The fourth proportional to 235,679.41, 325,236.98 and 128,249.41 is: 176,983.86
Step by Step Solution
- Step 1: Write the proportion equation
235,679.41 : 325,236.98 = 128,249.41 : x - Step 2: Convert to fraction form
235,679.41/325,236.98 = 128,249.41/x - Step 3: Cross multiply
235,679.41x = 325,236.98 × 128,249.41 - Step 4: Simplify right side
235,679.41x = 41,711,450,795.18 - Step 5: Solve for x
x = 41,711,450,795.18/235,679.41 - Step 6: Final answer
x = 176,983.86
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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.