Finding the Fourth Proportional to 230,556.24, 318,161.20 and 128,584.80
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Solution
The fourth proportional to 230,556.24, 318,161.20 and 128,584.80 is: 177,443.45
Step by Step Solution
- Step 1: Write the proportion equation
230,556.24 : 318,161.20 = 128,584.80 : x - Step 2: Convert to fraction form
230,556.24/318,161.20 = 128,584.80/x - Step 3: Cross multiply
230,556.24x = 318,161.20 × 128,584.80 - Step 4: Simplify right side
230,556.24x = 40,910,694,269.76 - Step 5: Solve for x
x = 40,910,694,269.76/230,556.24 - Step 6: Final answer
x = 177,443.45
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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.