Finding the Fourth Proportional to 253,713.14, 380,605.26 and 103,974.74
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Solution
The fourth proportional to 253,713.14, 380,605.26 and 103,974.74 is: 155,976.68
Step by Step Solution
- Step 1: Write the proportion equation
253,713.14 : 380,605.26 = 103,974.74 : x - Step 2: Convert to fraction form
253,713.14/380,605.26 = 103,974.74/x - Step 3: Cross multiply
253,713.14x = 380,605.26 × 103,974.74 - Step 4: Simplify right side
253,713.14x = 39,573,332,951.13 - Step 5: Solve for x
x = 39,573,332,951.13/253,713.14 - Step 6: Final answer
x = 155,976.68
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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.