Finding the Fourth Proportional to 416,790.69, 575,171.76 and 225,804.08
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Solution
The fourth proportional to 416,790.69, 575,171.76 and 225,804.08 is: 311,609.95
Step by Step Solution
- Step 1: Write the proportion equation
416,790.69 : 575,171.76 = 225,804.08 : x - Step 2: Convert to fraction form
416,790.69/575,171.76 = 225,804.08/x - Step 3: Cross multiply
416,790.69x = 575,171.76 × 225,804.08 - Step 4: Simplify right side
416,790.69x = 129,876,126,103.90 - Step 5: Solve for x
x = 129,876,126,103.90/416,790.69 - Step 6: Final answer
x = 311,609.95
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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.