Finding the Fourth Proportional to 211,764.63, 292,234.33 and 121,120.46
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Solution
The fourth proportional to 211,764.63, 292,234.33 and 121,120.46 is: 167,145.75
Step by Step Solution
- Step 1: Write the proportion equation
211,764.63 : 292,234.33 = 121,120.46 : x - Step 2: Convert to fraction form
211,764.63/292,234.33 = 121,120.46/x - Step 3: Cross multiply
211,764.63x = 292,234.33 × 121,120.46 - Step 4: Simplify right side
211,764.63x = 35,395,556,905.18 - Step 5: Solve for x
x = 35,395,556,905.18/211,764.63 - Step 6: Final answer
x = 167,145.75
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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.