Finding the Fourth Proportional to 213,422.06, 294,439.92 and 122,763.62
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Solution
The fourth proportional to 213,422.06, 294,439.92 and 122,763.62 is: 169,366.33
Step by Step Solution
- Step 1: Write the proportion equation
213,422.06 : 294,439.92 = 122,763.62 : x - Step 2: Convert to fraction form
213,422.06/294,439.92 = 122,763.62/x - Step 3: Cross multiply
213,422.06x = 294,439.92 × 122,763.62 - Step 4: Simplify right side
213,422.06x = 36,146,510,451.71 - Step 5: Solve for x
x = 36,146,510,451.71/213,422.06 - Step 6: Final answer
x = 169,366.33
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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.