Finding the Fourth Proportional to 213,171.40, 294,186.04 and 122,556.68
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Solution
The fourth proportional to 213,171.40, 294,186.04 and 122,556.68 is: 169,133.68
Step by Step Solution
- Step 1: Write the proportion equation
213,171.40 : 294,186.04 = 122,556.68 : x - Step 2: Convert to fraction form
213,171.40/294,186.04 = 122,556.68/x - Step 3: Cross multiply
213,171.40x = 294,186.04 × 122,556.68 - Step 4: Simplify right side
213,171.40x = 36,054,464,364.75 - Step 5: Solve for x
x = 36,054,464,364.75/213,171.40 - Step 6: Final answer
x = 169,133.68
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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.