Finding the Fourth Proportional to 281,374.08, 422,102.70 and 81,668.58
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Solution
The fourth proportional to 281,374.08, 422,102.70 and 81,668.58 is: 122,514.94
Step by Step Solution
- Step 1: Write the proportion equation
281,374.08 : 422,102.70 = 81,668.58 : x - Step 2: Convert to fraction form
281,374.08/422,102.70 = 81,668.58/x - Step 3: Cross multiply
281,374.08x = 422,102.70 × 81,668.58 - Step 4: Simplify right side
281,374.08x = 34,472,528,123.17 - Step 5: Solve for x
x = 34,472,528,123.17/281,374.08 - Step 6: Final answer
x = 122,514.94
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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.