Finding the Fourth Proportional to 386,481.09, 579,449.99 and 170,237.19
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Solution
The fourth proportional to 386,481.09, 579,449.99 and 170,237.19 is: 255,236.13
Step by Step Solution
- Step 1: Write the proportion equation
386,481.09 : 579,449.99 = 170,237.19 : x - Step 2: Convert to fraction form
386,481.09/579,449.99 = 170,237.19/x - Step 3: Cross multiply
386,481.09x = 579,449.99 × 170,237.19 - Step 4: Simplify right side
386,481.09x = 98,643,937,191.94 - Step 5: Solve for x
x = 98,643,937,191.94/386,481.09 - Step 6: Final answer
x = 255,236.13
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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.