Finding the Fourth Proportional to 265,281.80, 397,922.70 and 212,793.80
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Solution
The fourth proportional to 265,281.80, 397,922.70 and 212,793.80 is: 319,190.70
Step by Step Solution
- Step 1: Write the proportion equation
265,281.80 : 397,922.70 = 212,793.80 : x - Step 2: Convert to fraction form
265,281.80/397,922.70 = 212,793.80/x - Step 3: Cross multiply
265,281.80x = 397,922.70 × 212,793.80 - Step 4: Simplify right side
265,281.80x = 84,675,483,439.26 - Step 5: Solve for x
x = 84,675,483,439.26/265,281.80 - Step 6: Final answer
x = 319,190.70
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1.5x scale
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.