Finding the Fourth Proportional to 236,988.72, 327,040.74 and 129,556.26
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Solution
The fourth proportional to 236,988.72, 327,040.74 and 129,556.26 is: 178,785.62
Step by Step Solution
- Step 1: Write the proportion equation
236,988.72 : 327,040.74 = 129,556.26 : x - Step 2: Convert to fraction form
236,988.72/327,040.74 = 129,556.26/x - Step 3: Cross multiply
236,988.72x = 327,040.74 × 129,556.26 - Step 4: Simplify right side
236,988.72x = 42,370,175,142.03 - Step 5: Solve for x
x = 42,370,175,142.03/236,988.72 - Step 6: Final answer
x = 178,785.62
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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.