Finding the Fourth Proportional to 331,389.96, 457,377.67 and 195,415.75
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Solution
The fourth proportional to 331,389.96, 457,377.67 and 195,415.75 is: 269,708.84
Step by Step Solution
- Step 1: Write the proportion equation
331,389.96 : 457,377.67 = 195,415.75 : x - Step 2: Convert to fraction form
331,389.96/457,377.67 = 195,415.75/x - Step 3: Cross multiply
331,389.96x = 457,377.67 × 195,415.75 - Step 4: Simplify right side
331,389.96x = 89,378,800,416.30 - Step 5: Solve for x
x = 89,378,800,416.30/331,389.96 - Step 6: Final answer
x = 269,708.84
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1.5x scale
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.