Finding the Fourth Proportional to 213,211.50, 294,231.79 and 122,585.19
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Solution
The fourth proportional to 213,211.50, 294,231.79 and 122,585.19 is: 169,167.51
Step by Step Solution
- Step 1: Write the proportion equation
213,211.50 : 294,231.79 = 122,585.19 : x - Step 2: Convert to fraction form
213,211.50/294,231.79 = 122,585.19/x - Step 3: Cross multiply
213,211.50x = 294,231.79 × 122,585.19 - Step 4: Simplify right side
213,211.50x = 36,068,458,931.05 - Step 5: Solve for x
x = 36,068,458,931.05/213,211.50 - Step 6: Final answer
x = 169,167.51
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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.