Finding the Fourth Proportional to 402,841.99, 555,930.84 and 221,563.09
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Solution
The fourth proportional to 402,841.99, 555,930.84 and 221,563.09 is: 305,761.96
Step by Step Solution
- Step 1: Write the proportion equation
402,841.99 : 555,930.84 = 221,563.09 : x - Step 2: Convert to fraction form
402,841.99/555,930.84 = 221,563.09/x - Step 3: Cross multiply
402,841.99x = 555,930.84 × 221,563.09 - Step 4: Simplify right side
402,841.99x = 123,173,754,736.70 - Step 5: Solve for x
x = 123,173,754,736.70/402,841.99 - Step 6: Final answer
x = 305,761.96
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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.