Finding the Fourth Proportional to 137,466.48, 206,279.08 and 74,286.80
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Solution
The fourth proportional to 137,466.48, 206,279.08 and 74,286.80 is: 111,473.09
Step by Step Solution
- Step 1: Write the proportion equation
137,466.48 : 206,279.08 = 74,286.80 : x - Step 2: Convert to fraction form
137,466.48/206,279.08 = 74,286.80/x - Step 3: Cross multiply
137,466.48x = 206,279.08 × 74,286.80 - Step 4: Simplify right side
137,466.48x = 15,323,812,760.14 - Step 5: Solve for x
x = 15,323,812,760.14/137,466.48 - Step 6: Final answer
x = 111,473.09
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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.