Finding the Fourth Proportional to 286,302.60, 395,140.68 and 205,995.96
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Solution
The fourth proportional to 286,302.60, 395,140.68 and 205,995.96 is: 284,305.43
Step by Step Solution
- Step 1: Write the proportion equation
286,302.60 : 395,140.68 = 205,995.96 : x - Step 2: Convert to fraction form
286,302.60/395,140.68 = 205,995.96/x - Step 3: Cross multiply
286,302.60x = 395,140.68 × 205,995.96 - Step 4: Simplify right side
286,302.60x = 81,397,383,711.65 - Step 5: Solve for x
x = 81,397,383,711.65/286,302.60 - Step 6: Final answer
x = 284,305.43
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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.