Finding the Fourth Proportional to 278,883.84, 418,322.07 and 68,523.60
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Solution
The fourth proportional to 278,883.84, 418,322.07 and 68,523.60 is: 102,784.49
Step by Step Solution
- Step 1: Write the proportion equation
278,883.84 : 418,322.07 = 68,523.60 : x - Step 2: Convert to fraction form
278,883.84/418,322.07 = 68,523.60/x - Step 3: Cross multiply
278,883.84x = 418,322.07 × 68,523.60 - Step 4: Simplify right side
278,883.84x = 28,664,934,195.85 - Step 5: Solve for x
x = 28,664,934,195.85/278,883.84 - Step 6: Final answer
x = 102,784.49
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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.