Finding the Fourth Proportional to 255,751.71, 383,864.18 and 129,480.68
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Solution
The fourth proportional to 255,751.71, 383,864.18 and 129,480.68 is: 194,340.80
Step by Step Solution
- Step 1: Write the proportion equation
255,751.71 : 383,864.18 = 129,480.68 : x - Step 2: Convert to fraction form
255,751.71/383,864.18 = 129,480.68/x - Step 3: Cross multiply
255,751.71x = 383,864.18 × 129,480.68 - Step 4: Simplify right side
255,751.71x = 49,702,992,487.32 - Step 5: Solve for x
x = 49,702,992,487.32/255,751.71 - Step 6: Final answer
x = 194,340.80
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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.