Finding the Fourth Proportional to 205,761.13, 283,961.38 and 115,111.68
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Solution
The fourth proportional to 205,761.13, 283,961.38 and 115,111.68 is: 158,860.28
Step by Step Solution
- Step 1: Write the proportion equation
205,761.13 : 283,961.38 = 115,111.68 : x - Step 2: Convert to fraction form
205,761.13/283,961.38 = 115,111.68/x - Step 3: Cross multiply
205,761.13x = 283,961.38 × 115,111.68 - Step 4: Simplify right side
205,761.13x = 32,687,271,506.92 - Step 5: Solve for x
x = 32,687,271,506.92/205,761.13 - Step 6: Final answer
x = 158,860.28
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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.