Finding the Fourth Proportional to 379,305.36, 568,979.93 and 142,650.09
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Solution
The fourth proportional to 379,305.36, 568,979.93 and 142,650.09 is: 213,983.37
Step by Step Solution
- Step 1: Write the proportion equation
379,305.36 : 568,979.93 = 142,650.09 : x - Step 2: Convert to fraction form
379,305.36/568,979.93 = 142,650.09/x - Step 3: Cross multiply
379,305.36x = 568,979.93 × 142,650.09 - Step 4: Simplify right side
379,305.36x = 81,165,038,579.32 - Step 5: Solve for x
x = 81,165,038,579.32/379,305.36 - Step 6: Final answer
x = 213,983.37
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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.