Finding the Fourth Proportional to 311,486.86, 467,269.21 and 121,922.76
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Solution
The fourth proportional to 311,486.86, 467,269.21 and 121,922.76 is: 182,899.38
Step by Step Solution
- Step 1: Write the proportion equation
311,486.86 : 467,269.21 = 121,922.76 : x - Step 2: Convert to fraction form
311,486.86/467,269.21 = 121,922.76/x - Step 3: Cross multiply
311,486.86x = 467,269.21 × 121,922.76 - Step 4: Simplify right side
311,486.86x = 56,970,751,746.22 - Step 5: Solve for x
x = 56,970,751,746.22/311,486.86 - Step 6: Final answer
x = 182,899.38
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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.