Finding the Fourth Proportional to 212,138.74, 292,750.43 and 124,974.44
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Solution
The fourth proportional to 212,138.74, 292,750.43 and 124,974.44 is: 172,464.12
Step by Step Solution
- Step 1: Write the proportion equation
212,138.74 : 292,750.43 = 124,974.44 : x - Step 2: Convert to fraction form
212,138.74/292,750.43 = 124,974.44/x - Step 3: Cross multiply
212,138.74x = 292,750.43 × 124,974.44 - Step 4: Simplify right side
212,138.74x = 36,586,321,049.01 - Step 5: Solve for x
x = 36,586,321,049.01/212,138.74 - Step 6: Final answer
x = 172,464.12
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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.