Finding the Fourth Proportional to 211,251.40, 316,877.10 and 136,601.80
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Solution
The fourth proportional to 211,251.40, 316,877.10 and 136,601.80 is: 204,902.70
Step by Step Solution
- Step 1: Write the proportion equation
211,251.40 : 316,877.10 = 136,601.80 : x - Step 2: Convert to fraction form
211,251.40/316,877.10 = 136,601.80/x - Step 3: Cross multiply
211,251.40x = 316,877.10 × 136,601.80 - Step 4: Simplify right side
211,251.40x = 43,285,982,238.78 - Step 5: Solve for x
x = 43,285,982,238.78/211,251.40 - Step 6: Final answer
x = 204,902.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.