Finding the Fourth Proportional to 281,679.36, 421,899.84 and 266,151.84
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Solution
The fourth proportional to 281,679.36, 421,899.84 and 266,151.84 is: 398,642.69
Step by Step Solution
- Step 1: Write the proportion equation
281,679.36 : 421,899.84 = 266,151.84 : x - Step 2: Convert to fraction form
281,679.36/421,899.84 = 266,151.84/x - Step 3: Cross multiply
281,679.36x = 421,899.84 × 266,151.84 - Step 4: Simplify right side
281,679.36x = 112,289,418,711.71 - Step 5: Solve for x
x = 112,289,418,711.71/281,679.36 - Step 6: Final answer
x = 398,642.69
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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.