Finding the Fourth Proportional to 275,741.58, 380,478.77 and 172,363.68
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Solution
The fourth proportional to 275,741.58, 380,478.77 and 172,363.68 is: 237,833.99
Step by Step Solution
- Step 1: Write the proportion equation
275,741.58 : 380,478.77 = 172,363.68 : x - Step 2: Convert to fraction form
275,741.58/380,478.77 = 172,363.68/x - Step 3: Cross multiply
275,741.58x = 380,478.77 × 172,363.68 - Step 4: Simplify right side
275,741.58x = 65,580,720,743.62 - Step 5: Solve for x
x = 65,580,720,743.62/275,741.58 - Step 6: Final answer
x = 237,833.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.