Finding the Fourth Proportional to 352,811.80, 529,217.70 and 212,843.80
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Solution
The fourth proportional to 352,811.80, 529,217.70 and 212,843.80 is: 319,265.70
Step by Step Solution
- Step 1: Write the proportion equation
352,811.80 : 529,217.70 = 212,843.80 : x - Step 2: Convert to fraction form
352,811.80/529,217.70 = 212,843.80/x - Step 3: Cross multiply
352,811.80x = 529,217.70 × 212,843.80 - Step 4: Simplify right side
352,811.80x = 112,640,706,295.26 - Step 5: Solve for x
x = 112,640,706,295.26/352,811.80 - Step 6: Final answer
x = 319,265.70
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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.