Finding the Fourth Proportional to 226,378.58, 312,384.14 and 130,891.44
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Solution
The fourth proportional to 226,378.58, 312,384.14 and 130,891.44 is: 180,619.60
Step by Step Solution
- Step 1: Write the proportion equation
226,378.58 : 312,384.14 = 130,891.44 : x - Step 2: Convert to fraction form
226,378.58/312,384.14 = 130,891.44/x - Step 3: Cross multiply
226,378.58x = 312,384.14 × 130,891.44 - Step 4: Simplify right side
226,378.58x = 40,888,407,701.38 - Step 5: Solve for x
x = 40,888,407,701.38/226,378.58 - Step 6: Final answer
x = 180,619.60
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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.