Finding the Fourth Proportional to 239,428.44, 330,392.79 and 131,998.14
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Solution
The fourth proportional to 239,428.44, 330,392.79 and 131,998.14 is: 182,147.26
Step by Step Solution
- Step 1: Write the proportion equation
239,428.44 : 330,392.79 = 131,998.14 : x - Step 2: Convert to fraction form
239,428.44/330,392.79 = 131,998.14/x - Step 3: Cross multiply
239,428.44x = 330,392.79 × 131,998.14 - Step 4: Simplify right side
239,428.44x = 43,611,233,749.41 - Step 5: Solve for x
x = 43,611,233,749.41/239,428.44 - Step 6: Final answer
x = 182,147.26
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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.