Finding the Fourth Proportional to 238,220.28, 356,863.26 and 138,170.28
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Solution
The fourth proportional to 238,220.28, 356,863.26 and 138,170.28 is: 206,984.46
Step by Step Solution
- Step 1: Write the proportion equation
238,220.28 : 356,863.26 = 138,170.28 : x - Step 2: Convert to fraction form
238,220.28/356,863.26 = 138,170.28/x - Step 3: Cross multiply
238,220.28x = 356,863.26 × 138,170.28 - Step 4: Simplify right side
238,220.28x = 49,307,896,555.91 - Step 5: Solve for x
x = 49,307,896,555.91/238,220.28 - Step 6: Final answer
x = 206,984.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.