Finding the Fourth Proportional to 212,575.94, 318,868.68 and 79,383.54
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Solution
The fourth proportional to 212,575.94, 318,868.68 and 79,383.54 is: 119,077.09
Step by Step Solution
- Step 1: Write the proportion equation
212,575.94 : 318,868.68 = 79,383.54 : x - Step 2: Convert to fraction form
212,575.94/318,868.68 = 79,383.54/x - Step 3: Cross multiply
212,575.94x = 318,868.68 × 79,383.54 - Step 4: Simplify right side
212,575.94x = 25,312,924,613.53 - Step 5: Solve for x
x = 25,312,924,613.53/212,575.94 - Step 6: Final answer
x = 119,077.09
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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.