Finding the Fourth Proportional to 211,183.80, 291,432.78 and 115,696.44
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Solution
The fourth proportional to 211,183.80, 291,432.78 and 115,696.44 is: 159,660.61
Step by Step Solution
- Step 1: Write the proportion equation
211,183.80 : 291,432.78 = 115,696.44 : x - Step 2: Convert to fraction form
211,183.80/291,432.78 = 115,696.44/x - Step 3: Cross multiply
211,183.80x = 291,432.78 × 115,696.44 - Step 4: Simplify right side
211,183.80x = 33,717,735,145.30 - Step 5: Solve for x
x = 33,717,735,145.30/211,183.80 - Step 6: Final answer
x = 159,660.61
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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.