Finding the Fourth Proportional to 343,773.80, 515,660.70 and 320,445.80
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Solution
The fourth proportional to 343,773.80, 515,660.70 and 320,445.80 is: 480,668.70
Step by Step Solution
- Step 1: Write the proportion equation
343,773.80 : 515,660.70 = 320,445.80 : x - Step 2: Convert to fraction form
343,773.80/515,660.70 = 320,445.80/x - Step 3: Cross multiply
343,773.80x = 515,660.70 × 320,445.80 - Step 4: Simplify right side
343,773.80x = 165,241,305,540.06 - Step 5: Solve for x
x = 165,241,305,540.06/343,773.80 - Step 6: Final answer
x = 480,668.70
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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.