Finding the Fourth Proportional to 281,661.12, 422,491.98 and 71,299.06
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Solution
The fourth proportional to 281,661.12, 422,491.98 and 71,299.06 is: 106,948.67
Step by Step Solution
- Step 1: Write the proportion equation
281,661.12 : 422,491.98 = 71,299.06 : x - Step 2: Convert to fraction form
281,661.12/422,491.98 = 71,299.06/x - Step 3: Cross multiply
281,661.12x = 422,491.98 × 71,299.06 - Step 4: Simplify right side
281,661.12x = 30,123,281,031.54 - Step 5: Solve for x
x = 30,123,281,031.54/281,661.12 - Step 6: Final answer
x = 106,948.67
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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.