Finding the Fourth Proportional to 211,902.14, 292,423.57 and 115,105.12
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Solution
The fourth proportional to 211,902.14, 292,423.57 and 115,105.12 is: 158,844.31
Step by Step Solution
- Step 1: Write the proportion equation
211,902.14 : 292,423.57 = 115,105.12 : x - Step 2: Convert to fraction form
211,902.14/292,423.57 = 115,105.12/x - Step 3: Cross multiply
211,902.14x = 292,423.57 × 115,105.12 - Step 4: Simplify right side
211,902.14x = 33,659,449,096.86 - Step 5: Solve for x
x = 33,659,449,096.86/211,902.14 - Step 6: Final answer
x = 158,844.31
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1.5x scale
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.