Finding the Fourth Proportional to 284,964.75, 393,217.34 and 157,623.03
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Solution
The fourth proportional to 284,964.75, 393,217.34 and 157,623.03 is: 217,500.96
Step by Step Solution
- Step 1: Write the proportion equation
284,964.75 : 393,217.34 = 157,623.03 : x - Step 2: Convert to fraction form
284,964.75/393,217.34 = 157,623.03/x - Step 3: Cross multiply
284,964.75x = 393,217.34 × 157,623.03 - Step 4: Simplify right side
284,964.75x = 61,980,107,791.23 - Step 5: Solve for x
x = 61,980,107,791.23/284,964.75 - Step 6: Final answer
x = 217,500.96
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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.