Finding the Fourth Proportional to 311,106.96, 466,556.64 and 121,518.15
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Solution
The fourth proportional to 311,106.96, 466,556.64 and 121,518.15 is: 182,236.68
Step by Step Solution
- Step 1: Write the proportion equation
311,106.96 : 466,556.64 = 121,518.15 : x - Step 2: Convert to fraction form
311,106.96/466,556.64 = 121,518.15/x - Step 3: Cross multiply
311,106.96x = 466,556.64 × 121,518.15 - Step 4: Simplify right side
311,106.96x = 56,695,099,763.02 - Step 5: Solve for x
x = 56,695,099,763.02/311,106.96 - Step 6: Final answer
x = 182,236.68
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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.