Finding the Fourth Proportional to 312,234.28, 430,891.18 and 191,442.17
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Solution
The fourth proportional to 312,234.28, 430,891.18 and 191,442.17 is: 264,195.02
Step by Step Solution
- Step 1: Write the proportion equation
312,234.28 : 430,891.18 = 191,442.17 : x - Step 2: Convert to fraction form
312,234.28/430,891.18 = 191,442.17/x - Step 3: Cross multiply
312,234.28x = 430,891.18 × 191,442.17 - Step 4: Simplify right side
312,234.28x = 82,490,742,533.06 - Step 5: Solve for x
x = 82,490,742,533.06/312,234.28 - Step 6: Final answer
x = 264,195.02
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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.