Finding the Fourth Proportional to 221,963.56, 306,239.92 and 135,832.75
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Solution
The fourth proportional to 221,963.56, 306,239.92 and 135,832.75 is: 187,406.48
Step by Step Solution
- Step 1: Write the proportion equation
221,963.56 : 306,239.92 = 135,832.75 : x - Step 2: Convert to fraction form
221,963.56/306,239.92 = 135,832.75/x - Step 3: Cross multiply
221,963.56x = 306,239.92 × 135,832.75 - Step 4: Simplify right side
221,963.56x = 41,597,410,493.38 - Step 5: Solve for x
x = 41,597,410,493.38/221,963.56 - Step 6: Final answer
x = 187,406.48
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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.