Finding the Fourth Proportional to 211,760.55, 292,366.31 and 131,274.09
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Solution
The fourth proportional to 211,760.55, 292,366.31 and 131,274.09 is: 181,243.02
Step by Step Solution
- Step 1: Write the proportion equation
211,760.55 : 292,366.31 = 131,274.09 : x - Step 2: Convert to fraction form
211,760.55/292,366.31 = 131,274.09/x - Step 3: Cross multiply
211,760.55x = 292,366.31 × 131,274.09 - Step 4: Simplify right side
211,760.55x = 38,380,120,158.26 - Step 5: Solve for x
x = 38,380,120,158.26/211,760.55 - Step 6: Final answer
x = 181,243.02
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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.