Finding the Fourth Proportional to 311,630.60, 467,445.91 and 74,973.28
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Solution
The fourth proportional to 311,630.60, 467,445.91 and 74,973.28 is: 112,459.92
Step by Step Solution
- Step 1: Write the proportion equation
311,630.60 : 467,445.91 = 74,973.28 : x - Step 2: Convert to fraction form
311,630.60/467,445.91 = 74,973.28/x - Step 3: Cross multiply
311,630.60x = 467,445.91 × 74,973.28 - Step 4: Simplify right side
311,630.60x = 35,045,951,739.24 - Step 5: Solve for x
x = 35,045,951,739.24/311,630.60 - Step 6: Final answer
x = 112,459.92
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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.