Finding the Fourth Proportional to 378,879.77, 567,827.58 and 153,978.49
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Solution
The fourth proportional to 378,879.77, 567,827.58 and 153,978.49 is: 230,767.75
Step by Step Solution
- Step 1: Write the proportion equation
378,879.77 : 567,827.58 = 153,978.49 : x - Step 2: Convert to fraction form
378,879.77/567,827.58 = 153,978.49/x - Step 3: Cross multiply
378,879.77x = 567,827.58 × 153,978.49 - Step 4: Simplify right side
378,879.77x = 87,433,233,348.75 - Step 5: Solve for x
x = 87,433,233,348.75/378,879.77 - Step 6: Final answer
x = 230,767.75
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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.