Finding the Fourth Proportional to 311,566.20, 467,349.30 and 74,908.88
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Solution
The fourth proportional to 311,566.20, 467,349.30 and 74,908.88 is: 112,363.32
Step by Step Solution
- Step 1: Write the proportion equation
311,566.20 : 467,349.30 = 74,908.88 : x - Step 2: Convert to fraction form
311,566.20/467,349.30 = 74,908.88/x - Step 3: Cross multiply
311,566.20x = 467,349.30 × 74,908.88 - Step 4: Simplify right side
311,566.20x = 35,008,612,631.78 - Step 5: Solve for x
x = 35,008,612,631.78/311,566.20 - Step 6: Final answer
x = 112,363.32
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1.5x scale
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.