Finding the Fourth Proportional to 255,471.12, 383,253.18 and 86,982.84
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Solution
The fourth proportional to 255,471.12, 383,253.18 and 86,982.84 is: 130,490.09
Step by Step Solution
- Step 1: Write the proportion equation
255,471.12 : 383,253.18 = 86,982.84 : x - Step 2: Convert to fraction form
255,471.12/383,253.18 = 86,982.84/x - Step 3: Cross multiply
255,471.12x = 383,253.18 × 86,982.84 - Step 4: Simplify right side
255,471.12x = 33,336,450,035.43 - Step 5: Solve for x
x = 33,336,450,035.43/255,471.12 - Step 6: Final answer
x = 130,490.09
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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.