Finding the Fourth Proportional to 213,353.36, 294,438.60 and 117,859.28
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Solution
The fourth proportional to 213,353.36, 294,438.60 and 117,859.28 is: 162,651.86
Step by Step Solution
- Step 1: Write the proportion equation
213,353.36 : 294,438.60 = 117,859.28 : x - Step 2: Convert to fraction form
213,353.36/294,438.60 = 117,859.28/x - Step 3: Cross multiply
213,353.36x = 294,438.60 × 117,859.28 - Step 4: Simplify right side
213,353.36x = 34,702,321,400.21 - Step 5: Solve for x
x = 34,702,321,400.21/213,353.36 - Step 6: Final answer
x = 162,651.86
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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.