Finding the Fourth Proportional to 311,895.62, 430,416.41 and 168,655.67
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Solution
The fourth proportional to 311,895.62, 430,416.41 and 168,655.67 is: 232,745.07
Step by Step Solution
- Step 1: Write the proportion equation
311,895.62 : 430,416.41 = 168,655.67 : x - Step 2: Convert to fraction form
311,895.62/430,416.41 = 168,655.67/x - Step 3: Cross multiply
311,895.62x = 430,416.41 × 168,655.67 - Step 4: Simplify right side
311,895.62x = 72,592,168,007.54 - Step 5: Solve for x
x = 72,592,168,007.54/311,895.62 - Step 6: Final answer
x = 232,745.07
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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.