Finding the Fourth Proportional to 421,383.36, 632,093.49 and 121,894.21
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Solution
The fourth proportional to 421,383.36, 632,093.49 and 121,894.21 is: 182,846.65
Step by Step Solution
- Step 1: Write the proportion equation
421,383.36 : 632,093.49 = 121,894.21 : x - Step 2: Convert to fraction form
421,383.36/632,093.49 = 121,894.21/x - Step 3: Cross multiply
421,383.36x = 632,093.49 × 121,894.21 - Step 4: Simplify right side
421,383.36x = 77,048,535,029.46 - Step 5: Solve for x
x = 77,048,535,029.46/421,383.36 - Step 6: Final answer
x = 182,846.65
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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.