Finding the Fourth Proportional to 311,776.13, 467,665.17 and 87,135.08
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Solution
The fourth proportional to 311,776.13, 467,665.17 and 87,135.08 is: 130,702.89
Step by Step Solution
- Step 1: Write the proportion equation
311,776.13 : 467,665.17 = 87,135.08 : x - Step 2: Convert to fraction form
311,776.13/467,665.17 = 87,135.08/x - Step 3: Cross multiply
311,776.13x = 467,665.17 × 87,135.08 - Step 4: Simplify right side
311,776.13x = 40,750,039,662.84 - Step 5: Solve for x
x = 40,750,039,662.84/311,776.13 - Step 6: Final answer
x = 130,702.89
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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.