Finding the Fourth Proportional to 242,993.63, 335,324.74 and 135,560.90
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Solution
The fourth proportional to 242,993.63, 335,324.74 and 135,560.90 is: 187,070.43
Step by Step Solution
- Step 1: Write the proportion equation
242,993.63 : 335,324.74 = 135,560.90 : x - Step 2: Convert to fraction form
242,993.63/335,324.74 = 135,560.90/x - Step 3: Cross multiply
242,993.63x = 335,324.74 × 135,560.90 - Step 4: Simplify right side
242,993.63x = 45,456,923,546.67 - Step 5: Solve for x
x = 45,456,923,546.67/242,993.63 - Step 6: Final answer
x = 187,070.43
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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.