Finding the Fourth Proportional to 328,096.98, 492,129.07 and 128,453.99
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Solution
The fourth proportional to 328,096.98, 492,129.07 and 128,453.99 is: 192,674.56
Step by Step Solution
- Step 1: Write the proportion equation
328,096.98 : 492,129.07 = 128,453.99 : x - Step 2: Convert to fraction form
328,096.98/492,129.07 = 128,453.99/x - Step 3: Cross multiply
328,096.98x = 492,129.07 × 128,453.99 - Step 4: Simplify right side
328,096.98x = 63,215,939,854.71 - Step 5: Solve for x
x = 63,215,939,854.71/328,096.98 - Step 6: Final answer
x = 192,674.56
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1.5x scale
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.