Finding the Fourth Proportional to 194,791.20, 292,186.80 and 106,217.70
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Solution
The fourth proportional to 194,791.20, 292,186.80 and 106,217.70 is: 159,326.55
Step by Step Solution
- Step 1: Write the proportion equation
194,791.20 : 292,186.80 = 106,217.70 : x - Step 2: Convert to fraction form
194,791.20/292,186.80 = 106,217.70/x - Step 3: Cross multiply
194,791.20x = 292,186.80 × 106,217.70 - Step 4: Simplify right side
194,791.20x = 31,035,409,866.36 - Step 5: Solve for x
x = 31,035,409,866.36/194,791.20 - Step 6: Final answer
x = 159,326.55
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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.