Finding the Fourth Proportional to 391,168.24, 539,793.48 and 240,236.08
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Solution
The fourth proportional to 391,168.24, 539,793.48 and 240,236.08 is: 331,514.31
Step by Step Solution
- Step 1: Write the proportion equation
391,168.24 : 539,793.48 = 240,236.08 : x - Step 2: Convert to fraction form
391,168.24/539,793.48 = 240,236.08/x - Step 3: Cross multiply
391,168.24x = 539,793.48 × 240,236.08 - Step 4: Simplify right side
391,168.24x = 129,677,869,644.76 - Step 5: Solve for x
x = 129,677,869,644.76/391,168.24 - Step 6: Final answer
x = 331,514.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.