Finding the Fourth Proportional to 226,122.51, 312,053.94 and 129,335.21
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Solution
The fourth proportional to 226,122.51, 312,053.94 and 129,335.21 is: 178,485.38
Step by Step Solution
- Step 1: Write the proportion equation
226,122.51 : 312,053.94 = 129,335.21 : x - Step 2: Convert to fraction form
226,122.51/312,053.94 = 129,335.21/x - Step 3: Cross multiply
226,122.51x = 312,053.94 × 129,335.21 - Step 4: Simplify right side
226,122.51x = 40,359,561,861.23 - Step 5: Solve for x
x = 40,359,561,861.23/226,122.51 - Step 6: Final answer
x = 178,485.38
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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.