Finding the Fourth Proportional to 311,371.12, 467,122.32 and 100,992.70
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Solution
The fourth proportional to 311,371.12, 467,122.32 and 100,992.70 is: 151,510.34
Step by Step Solution
- Step 1: Write the proportion equation
311,371.12 : 467,122.32 = 100,992.70 : x - Step 2: Convert to fraction form
311,371.12/467,122.32 = 100,992.70/x - Step 3: Cross multiply
311,371.12x = 467,122.32 × 100,992.70 - Step 4: Simplify right side
311,371.12x = 47,175,944,327.06 - Step 5: Solve for x
x = 47,175,944,327.06/311,371.12 - Step 6: Final answer
x = 151,510.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.