Finding the Fourth Proportional to 212,246.52, 292,906.38 and 121,611
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Solution
The fourth proportional to 212,246.52, 292,906.38 and 121,611 is: 167,826.72
Step by Step Solution
- Step 1: Write the proportion equation
212,246.52 : 292,906.38 = 121,611 : x - Step 2: Convert to fraction form
212,246.52/292,906.38 = 121,611/x - Step 3: Cross multiply
212,246.52x = 292,906.38 × 121,611 - Step 4: Simplify right side
212,246.52x = 35,620,637,778.18 - Step 5: Solve for x
x = 35,620,637,778.18/212,246.52 - Step 6: Final answer
x = 167,826.72
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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.