Finding the Fourth Proportional to 290,318.70, 434,894.85 and 201,672.30
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Solution
The fourth proportional to 290,318.70, 434,894.85 and 201,672.30 is: 302,103.33
Step by Step Solution
- Step 1: Write the proportion equation
290,318.70 : 434,894.85 = 201,672.30 : x - Step 2: Convert to fraction form
290,318.70/434,894.85 = 201,672.30/x - Step 3: Cross multiply
290,318.70x = 434,894.85 × 201,672.30 - Step 4: Simplify right side
290,318.70x = 87,706,244,657.66 - Step 5: Solve for x
x = 87,706,244,657.66/290,318.70 - Step 6: Final answer
x = 302,103.33
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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.