Finding the Fourth Proportional to 239,286.20, 330,229.44 and 131,856.14
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Solution
The fourth proportional to 239,286.20, 330,229.44 and 131,856.14 is: 181,969.45
Step by Step Solution
- Step 1: Write the proportion equation
239,286.20 : 330,229.44 = 131,856.14 : x - Step 2: Convert to fraction form
239,286.20/330,229.44 = 131,856.14/x - Step 3: Cross multiply
239,286.20x = 330,229.44 × 131,856.14 - Step 4: Simplify right side
239,286.20x = 43,542,779,272.76 - Step 5: Solve for x
x = 43,542,779,272.76/239,286.20 - Step 6: Final answer
x = 181,969.45
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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.