Finding the Fourth Proportional to 170,935.80, 256,403.70 and 117,791.70
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Solution
The fourth proportional to 170,935.80, 256,403.70 and 117,791.70 is: 176,687.55
Step by Step Solution
- Step 1: Write the proportion equation
170,935.80 : 256,403.70 = 117,791.70 : x - Step 2: Convert to fraction form
170,935.80/256,403.70 = 117,791.70/x - Step 3: Cross multiply
170,935.80x = 256,403.70 × 117,791.70 - Step 4: Simplify right side
170,935.80x = 30,202,227,709.29 - Step 5: Solve for x
x = 30,202,227,709.29/170,935.80 - Step 6: Final answer
x = 176,687.55
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1.5x scale
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.