Finding the Fourth Proportional to 211,653.76, 292,034.21 and 120,995.09
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Solution
The fourth proportional to 211,653.76, 292,034.21 and 120,995.09 is: 166,945.80
Step by Step Solution
- Step 1: Write the proportion equation
211,653.76 : 292,034.21 = 120,995.09 : x - Step 2: Convert to fraction form
211,653.76/292,034.21 = 120,995.09/x - Step 3: Cross multiply
211,653.76x = 292,034.21 × 120,995.09 - Step 4: Simplify right side
211,653.76x = 35,334,706,053.95 - Step 5: Solve for x
x = 35,334,706,053.95/211,653.76 - Step 6: Final answer
x = 166,945.80
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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.