Finding the Fourth Proportional to 226,121.51, 312,052.56 and 129,334.21
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Solution
The fourth proportional to 226,121.51, 312,052.56 and 129,334.21 is: 178,484.00
Step by Step Solution
- Step 1: Write the proportion equation
226,121.51 : 312,052.56 = 129,334.21 : x - Step 2: Convert to fraction form
226,121.51/312,052.56 = 129,334.21/x - Step 3: Cross multiply
226,121.51x = 312,052.56 × 129,334.21 - Step 4: Simplify right side
226,121.51x = 40,359,071,326.08 - Step 5: Solve for x
x = 40,359,071,326.08/226,121.51 - Step 6: Final answer
x = 178,484.00
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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.