Finding the Fourth Proportional to 212,194.20, 292,813.74 and 121,550.52
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Solution
The fourth proportional to 212,194.20, 292,813.74 and 121,550.52 is: 167,731.55
Step by Step Solution
- Step 1: Write the proportion equation
212,194.20 : 292,813.74 = 121,550.52 : x - Step 2: Convert to fraction form
212,194.20/292,813.74 = 121,550.52/x - Step 3: Cross multiply
212,194.20x = 292,813.74 × 121,550.52 - Step 4: Simplify right side
212,194.20x = 35,591,662,360.14 - Step 5: Solve for x
x = 35,591,662,360.14/212,194.20 - Step 6: Final answer
x = 167,731.55
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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.