Finding the Fourth Proportional to 281,323.13, 421,984.69 and 84,331.13
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Solution
The fourth proportional to 281,323.13, 421,984.69 and 84,331.13 is: 126,496.69
Step by Step Solution
- Step 1: Write the proportion equation
281,323.13 : 421,984.69 = 84,331.13 : x - Step 2: Convert to fraction form
281,323.13/421,984.69 = 84,331.13/x - Step 3: Cross multiply
281,323.13x = 421,984.69 × 84,331.13 - Step 4: Simplify right side
281,323.13x = 35,586,443,429.65 - Step 5: Solve for x
x = 35,586,443,429.65/281,323.13 - Step 6: Final answer
x = 126,496.69
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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.