Finding the Fourth Proportional to 311,569.08, 467,353.62 and 74,911.76
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Solution
The fourth proportional to 311,569.08, 467,353.62 and 74,911.76 is: 112,367.63
Step by Step Solution
- Step 1: Write the proportion equation
311,569.08 : 467,353.62 = 74,911.76 : x - Step 2: Convert to fraction form
311,569.08/467,353.62 = 74,911.76/x - Step 3: Cross multiply
311,569.08x = 467,353.62 × 74,911.76 - Step 4: Simplify right side
311,569.08x = 35,010,279,879.80 - Step 5: Solve for x
x = 35,010,279,879.80/311,569.08 - Step 6: Final answer
x = 112,367.63
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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.