Finding the Fourth Proportional to 391,910.96, 587,915.06 and 111,450.08
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Solution
The fourth proportional to 391,910.96, 587,915.06 and 111,450.08 is: 167,188.95
Step by Step Solution
- Step 1: Write the proportion equation
391,910.96 : 587,915.06 = 111,450.08 : x - Step 2: Convert to fraction form
391,910.96/587,915.06 = 111,450.08/x - Step 3: Cross multiply
391,910.96x = 587,915.06 × 111,450.08 - Step 4: Simplify right side
391,910.96x = 65,523,180,470.20 - Step 5: Solve for x
x = 65,523,180,470.20/391,910.96 - Step 6: Final answer
x = 167,188.95
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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.