Finding the Fourth Proportional to 242,829.99, 335,107.19 and 135,406.98
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Solution
The fourth proportional to 242,829.99, 335,107.19 and 135,406.98 is: 186,862.64
Step by Step Solution
- Step 1: Write the proportion equation
242,829.99 : 335,107.19 = 135,406.98 : x - Step 2: Convert to fraction form
242,829.99/335,107.19 = 135,406.98/x - Step 3: Cross multiply
242,829.99x = 335,107.19 × 135,406.98 - Step 4: Simplify right side
242,829.99x = 45,375,852,912.70 - Step 5: Solve for x
x = 45,375,852,912.70/242,829.99 - Step 6: Final answer
x = 186,862.64
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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.