Finding the Fourth Proportional to 211,372.93, 291,691.29 and 115,880.28
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Solution
The fourth proportional to 211,372.93, 291,691.29 and 115,880.28 is: 159,912.95
Step by Step Solution
- Step 1: Write the proportion equation
211,372.93 : 291,691.29 = 115,880.28 : x - Step 2: Convert to fraction form
211,372.93/291,691.29 = 115,880.28/x - Step 3: Cross multiply
211,372.93x = 291,691.29 × 115,880.28 - Step 4: Simplify right side
211,372.93x = 33,801,268,358.76 - Step 5: Solve for x
x = 33,801,268,358.76/211,372.93 - Step 6: Final answer
x = 159,912.95
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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.