Finding the Fourth Proportional to 212,418.14, 293,102.74 and 121,757.42
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Solution
The fourth proportional to 212,418.14, 293,102.74 and 121,757.42 is: 168,005.58
Step by Step Solution
- Step 1: Write the proportion equation
212,418.14 : 293,102.74 = 121,757.42 : x - Step 2: Convert to fraction form
212,418.14/293,102.74 = 121,757.42/x - Step 3: Cross multiply
212,418.14x = 293,102.74 × 121,757.42 - Step 4: Simplify right side
212,418.14x = 35,687,432,808.54 - Step 5: Solve for x
x = 35,687,432,808.54/212,418.14 - Step 6: Final answer
x = 168,005.58
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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.