Finding the Fourth Proportional to 201,787.20, 302,680.80 and 113,213.70
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Solution
The fourth proportional to 201,787.20, 302,680.80 and 113,213.70 is: 169,820.55
Step by Step Solution
- Step 1: Write the proportion equation
201,787.20 : 302,680.80 = 113,213.70 : x - Step 2: Convert to fraction form
201,787.20/302,680.80 = 113,213.70/x - Step 3: Cross multiply
201,787.20x = 302,680.80 × 113,213.70 - Step 4: Simplify right side
201,787.20x = 34,267,613,286.96 - Step 5: Solve for x
x = 34,267,613,286.96/201,787.20 - Step 6: Final answer
x = 169,820.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.