Finding the Fourth Proportional to 281,133.75, 421,701.03 and 114,921.75
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Solution
The fourth proportional to 281,133.75, 421,701.03 and 114,921.75 is: 172,382.79
Step by Step Solution
- Step 1: Write the proportion equation
281,133.75 : 421,701.03 = 114,921.75 : x - Step 2: Convert to fraction form
281,133.75/421,701.03 = 114,921.75/x - Step 3: Cross multiply
281,133.75x = 421,701.03 × 114,921.75 - Step 4: Simplify right side
281,133.75x = 48,462,620,344.40 - Step 5: Solve for x
x = 48,462,620,344.40/281,133.75 - Step 6: Final answer
x = 172,382.79
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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.