Finding the Fourth Proportional to 194,857.80, 292,286.70 and 142,369.80
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Solution
The fourth proportional to 194,857.80, 292,286.70 and 142,369.80 is: 213,554.70
Step by Step Solution
- Step 1: Write the proportion equation
194,857.80 : 292,286.70 = 142,369.80 : x - Step 2: Convert to fraction form
194,857.80/292,286.70 = 142,369.80/x - Step 3: Cross multiply
194,857.80x = 292,286.70 × 142,369.80 - Step 4: Simplify right side
194,857.80x = 41,612,799,021.66 - Step 5: Solve for x
x = 41,612,799,021.66/194,857.80 - Step 6: Final answer
x = 213,554.70
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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.