Finding the Fourth Proportional to 445,923.87, 668,987.96 and 193,246.75
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Solution
The fourth proportional to 445,923.87, 668,987.96 and 193,246.75 is: 289,914.40
Step by Step Solution
- Step 1: Write the proportion equation
445,923.87 : 668,987.96 = 193,246.75 : x - Step 2: Convert to fraction form
445,923.87/668,987.96 = 193,246.75/x - Step 3: Cross multiply
445,923.87x = 668,987.96 × 193,246.75 - Step 4: Simplify right side
445,923.87x = 129,279,749,059.13 - Step 5: Solve for x
x = 129,279,749,059.13/445,923.87 - Step 6: Final answer
x = 289,914.40
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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.