Finding the Fourth Proportional to 212,274.28, 292,940.94 and 121,628.44
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Solution
The fourth proportional to 212,274.28, 292,940.94 and 121,628.44 is: 167,848.64
Step by Step Solution
- Step 1: Write the proportion equation
212,274.28 : 292,940.94 = 121,628.44 : x - Step 2: Convert to fraction form
212,274.28/292,940.94 = 121,628.44/x - Step 3: Cross multiply
212,274.28x = 292,940.94 × 121,628.44 - Step 4: Simplify right side
212,274.28x = 35,629,949,544.33 - Step 5: Solve for x
x = 35,629,949,544.33/212,274.28 - Step 6: Final answer
x = 167,848.64
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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.