Finding the Fourth Proportional to 226,817.70, 312,988.10 and 131,330.85
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Solution
The fourth proportional to 226,817.70, 312,988.10 and 131,330.85 is: 181,224.80
Step by Step Solution
- Step 1: Write the proportion equation
226,817.70 : 312,988.10 = 131,330.85 : x - Step 2: Convert to fraction form
226,817.70/312,988.10 = 131,330.85/x - Step 3: Cross multiply
226,817.70x = 312,988.10 × 131,330.85 - Step 4: Simplify right side
226,817.70x = 41,104,992,556.23 - Step 5: Solve for x
x = 41,104,992,556.23/226,817.70 - Step 6: Final answer
x = 181,224.80
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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.