Finding the Fourth Proportional to 281,461.81, 422,193.56 and 68,228.88
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Solution
The fourth proportional to 281,461.81, 422,193.56 and 68,228.88 is: 102,343.52
Step by Step Solution
- Step 1: Write the proportion equation
281,461.81 : 422,193.56 = 68,228.88 : x - Step 2: Convert to fraction form
281,461.81/422,193.56 = 68,228.88/x - Step 3: Cross multiply
281,461.81x = 422,193.56 × 68,228.88 - Step 4: Simplify right side
281,461.81x = 28,805,793,742.01 - Step 5: Solve for x
x = 28,805,793,742.01/281,461.81 - Step 6: Final answer
x = 102,343.52
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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.