Finding the Fourth Proportional to 212,940.97, 293,765.74 and 140,249.95
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Solution
The fourth proportional to 212,940.97, 293,765.74 and 140,249.95 is: 193,483.81
Step by Step Solution
- Step 1: Write the proportion equation
212,940.97 : 293,765.74 = 140,249.95 : x - Step 2: Convert to fraction form
212,940.97/293,765.74 = 140,249.95/x - Step 3: Cross multiply
212,940.97x = 293,765.74 × 140,249.95 - Step 4: Simplify right side
212,940.97x = 41,200,630,346.71 - Step 5: Solve for x
x = 41,200,630,346.71/212,940.97 - Step 6: Final answer
x = 193,483.81
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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.