Finding the Fourth Proportional to 352,768.80, 528,375.60 and 313,370.40
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Solution
The fourth proportional to 352,768.80, 528,375.60 and 313,370.40 is: 469,364.84
Step by Step Solution
- Step 1: Write the proportion equation
352,768.80 : 528,375.60 = 313,370.40 : x - Step 2: Convert to fraction form
352,768.80/528,375.60 = 313,370.40/x - Step 3: Cross multiply
352,768.80x = 528,375.60 × 313,370.40 - Step 4: Simplify right side
352,768.80x = 165,577,273,122.24 - Step 5: Solve for x
x = 165,577,273,122.24/352,768.80 - Step 6: Final answer
x = 469,364.84
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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.