Finding the Fourth Proportional to 226,071.36, 312,010.92 and 135,431.15
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Solution
The fourth proportional to 226,071.36, 312,010.92 and 135,431.15 is: 186,914.42
Step by Step Solution
- Step 1: Write the proportion equation
226,071.36 : 312,010.92 = 135,431.15 : x - Step 2: Convert to fraction form
226,071.36/312,010.92 = 135,431.15/x - Step 3: Cross multiply
226,071.36x = 312,010.92 × 135,431.15 - Step 4: Simplify right side
226,071.36x = 42,255,996,148.10 - Step 5: Solve for x
x = 42,255,996,148.10/226,071.36 - Step 6: Final answer
x = 186,914.42
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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.