Finding the Fourth Proportional to 354,791.20, 489,393.19 and 252,849.66
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Solution
The fourth proportional to 354,791.20, 489,393.19 and 252,849.66 is: 348,776.70
Step by Step Solution
- Step 1: Write the proportion equation
354,791.20 : 489,393.19 = 252,849.66 : x - Step 2: Convert to fraction form
354,791.20/489,393.19 = 252,849.66/x - Step 3: Cross multiply
354,791.20x = 489,393.19 × 252,849.66 - Step 4: Simplify right side
354,791.20x = 123,742,903,619.70 - Step 5: Solve for x
x = 123,742,903,619.70/354,791.20 - Step 6: Final answer
x = 348,776.70
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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.